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crosstimber
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Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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 Posted: Mar 20, 2018 13:33 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite |
| Locality: | | Ladywash Mine, Eyam, Derbyshire, England, United Kingdom |  |
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| Dimensions: | 1.7 x 1.9 cm |
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| Viewed: |
1185 Time(s) |
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crosstimber
Site Admin
Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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| Posted: Mar 22, 2018 11:36 Post subject: Re: Collection of Michael Shaw |
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For decades fluorite specimens similar to the one pictured below have been collected from numerous limestone and dolostone quarries in the northwest portion of Ohio and adjacent areas in Michigan and Indiana. The quarries are located in a geologic feature known as the Findlay Arch. In the most recent issue (Vol. 93, No.2) of Rocks and Minerals, there is a very good article about this area, describing many of the quarries, their history, and fluorite occurrences.
| Mineral: | Fluorite |
| Locality: | | White Rock Quarry, Clay Center, Ottawa County, Ohio, USA | |
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| Dimensions: | 6.7 x 10.4 cm |
| Description: |
| Lustrous cubic fluorite crystals to 1.0 cm with colorless transparent rims and root beer-colored interiors associated with minor pale blue celestine on a limestone matrix. Collected in the early 1960s. |
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| Viewed: |
1089 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | White Rock Quarry, Clay Center, Ottawa County, Ohio, USA | |
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| Description: |
| A portion of the specimen shown above. |
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| Viewed: |
1089 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | White Rock Quarry, Clay Center, Ottawa County, Ohio, USA | |
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| Description: |
| A portion of the specimen shown above. |
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| Viewed: |
1091 Time(s) |
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crosstimber
Site Admin
Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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| Posted: Mar 24, 2018 10:02 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Azurite, Malachite, and Bayldonite |
| Locality: | | Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia | |
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| Dimensions: | 2.9 x 4.0 x 6.8 cm |
| Description: |
| Bright blue, lenticular azurite crystals fully and partially pseudomorphed to malachite with lime green bayldonite. |
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| Viewed: |
1014 Time(s) |
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crosstimber
Site Admin
Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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| Posted: Mar 28, 2018 09:27 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Phenakite |
| Locality: | | Mogok Township, Pyin-Oo-Lwin District, Mandalay Division, Burma | |
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| Dimensions: | 1.0 x 1.7 cm |
| Description: |
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| Viewed: |
907 Time(s) |
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crosstimber
Site Admin
Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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| Posted: Mar 31, 2018 09:53 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Celestine |
| Locality: | | Annabel Lee Mine, Harris Creek Sub-District, Hardin County, Illinois, USA | |
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| Dimensions: | 5.3 x 6.3 cm |
| Description: |
| Lustrous, light blue, blocky celestine crystals. Prior to the opening of the Annabel Lee mine, celestine was a very uncommon mineral in the district, having been recorded from only 3 mines. The Annabel Lee Mine opened in 1984 and the following year there was a significant find of celestine on the Sub-Rosiclare level. |
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| Viewed: |
820 Time(s) |
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| Mineral: | Celestine |
| Locality: | | Annabel Lee Mine, Harris Creek Sub-District, Hardin County, Illinois, USA | |
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| Dimensions: | 5.3 x 6.3 cm |
| Description: |
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| Viewed: |
819 Time(s) |
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crosstimber
Site Admin
Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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| Posted: Apr 05, 2018 16:01 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Quartz (variety amethyst) |
| Locality: | | Karur District, Tamil Nadu, India | |
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| Dimensions: | 1.7 x 2.2 cm |
| Description: |
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| Viewed: |
711 Time(s) |
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crosstimber
Site Admin
Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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| Posted: Apr 06, 2018 11:05 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite |
| Locality: | | Kelleys Island, Lake Erie, Erie County, Ohio, USA | |
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| Dimensions: | 3.2 x 5.7 cm |
| Description: |
| Sub-parallel group of lustrous amber calcite crystals. |
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| Viewed: |
636 Time(s) |
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crosstimber
Site Admin
Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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| Posted: Apr 13, 2018 10:14 Post subject: Re: Collection of Michael Shaw |
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Mullica Hill, New Jersey is a well-known location for vivianite replacing the casts of various fossils. The cigar-shaped casts of the fossil gastropod Belemnitella americana occur as crystallized dark green vivianite enclosed within a brown rind of iron-stained sandstone.
| Mineral: | Vivianite |
| Locality: | | Mullica Hill, Harrison Township, Gloucester County, New Jersey, USA | |
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| Dimensions: | 2.3 x 6.1 cm |
| Description: |
| Dark green crystallized vivianite replacing the cast of a fossil belemnite. |
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| Viewed: |
454 Time(s) |
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| Mineral: | Vivianite |
| Locality: | | Mullica Hill, Harrison Township, Gloucester County, New Jersey, USA | |
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| Dimensions: | 2.3 x 6.1 cm |
| Description: |
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| Viewed: |
455 Time(s) |
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crosstimber
Site Admin
Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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| Posted: Apr 16, 2018 08:51 Post subject: Re: Collection of Michael Shaw |
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A tourmaline from a seldom-seen location.
| Mineral: | Elbaite (variety rubellite) |
| Locality: | | Lilypad Lakes pegmatites, Distrito Kenora, Northern Ontario Region, Ontario Province, Canada | |
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| Dimensions: | 3.0 x 3.7 x 7.0 cm |
| Description: |
| Lathlike crystals of pinkish purple elbaite embedded in white albite with minor quartz and lepidolite. |
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| Viewed: |
305 Time(s) |
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crosstimber
Site Admin
Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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| Posted: Apr 25, 2018 11:35 Post subject: Re: Collection of Michael Shaw |
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A few specimens from one of my earliest collecting forays in the early 1960s.
| Mineral: | Talc |
| Locality: | | Carlton Quarry, Chester, Windsor County, Vermont, USA | |
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| Dimensions: | 10.5 x 12.3 cm |
| Description: |
| Foliated green talc from a classic New England locale that no longer exists. A house now sits on the former quarry site. |
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| Viewed: |
135 Time(s) |
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| Mineral: | Actinolite in Talc |
| Locality: | | Carlton Quarry, Chester, Windsor County, Vermont, USA | |
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| Dimensions: | 4.1 x 5.5 cm |
| Description: |
| Dark green to black actinolite crystals embedded in silky gray talc. |
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| Viewed: |
135 Time(s) |
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| Mineral: | Actinolite |
| Locality: | | Carlton Quarry, Chester, Windsor County, Vermont, USA | |
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| Dimensions: | 6.0 x 7.5 cm |
| Description: |
| Dark green fibrous actinolite. |
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| Viewed: |
135 Time(s) |
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| Mineral: | Pyrite in Talc |
| Locality: | | Carlton Quarry, Chester, Windsor County, Vermont, USA | |
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| Dimensions: | 4.3 x 5.4 cm |
| Description: |
| Cubic pyrite crystals embedded in silky gray talc. |
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| Viewed: |
135 Time(s) |
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| Mineral: | Magnetite |
| Locality: | | Carlton Quarry, Chester, Windsor County, Vermont, USA | |
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| Dimensions: | Overall dimensions = 4.5 x 11.6 cm |
| Description: |
| Octahedral magnetite crystals to 0.7 cm embedded in green chlorite schist. |
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| Viewed: |
135 Time(s) |
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crosstimber
Site Admin
Joined: 30 Apr 2008
Posts: 1245
Location: Oklahoma
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| Posted: Apr 26, 2018 11:57 Post subject: Re: Collection of Michael Shaw |
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A few more self-collected specimens from the early 1960s. Varieties of tremolite.
| Mineral: | Tremolite (variety hexagonite) |
| Locality: | | Gouverneur Mine, Fowler, St. Lawrence County, New York, USA | |
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| Dimensions: | 6.5 x 12.8 cm |
| Description: |
| Fibrous lilac-colored tremolite var. hexagonite. Tremolite is typically white, but the lilac color on this specimen is due to Mn. |
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| Viewed: |
47 Time(s) |
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| Mineral: | Tremolite |
| Locality: | | Pfizer Company Marble Quarry, Canaan, North Canaan, Litchfield County, Connecticut, USA | |
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| Dimensions: | 12.9 x 16.5 cm |
| Description: |
| White to pale gray needle-like tremolite. I remember this collecting trip vividly; there was 1 to 2 inches of fresh snow overnight. We decided to go anyway, and had a pretty good day collecting. |
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| Viewed: |
48 Time(s) |
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| Mineral: | Tremolite (variety mountain leather) |
| Locality: | | Route 7 road cuts, New Ashford, Berkshire County, Massachusetts, USA | |
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| Dimensions: | 4.5 x 7.3 cm |
| Description: |
| A tightly compacted variety of Tremolite known as Mountain Leather. |
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| Viewed: |
47 Time(s) |
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| Mineral: | Tremolite (variety chrome tremolite) |
| Locality: | | Harcourt Township, Haliburton County, Ontario, Canada | |
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| Dimensions: | 1.4 x 2.8 cm |
| Description: |
| Tremolite colored green by chrome. |
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| Viewed: |
48 Time(s) |
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