| View previous topic :: View next topic |
| Author |
Message |
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2231
Location: Oklahoma
|
 Posted: Apr 29, 2025 08:23 Post subject: Re: Collection of Michael Shaw |
|
|
Dioptase from Gautala. Dioptase is notoriously difficult to photograph and achieve true color rendition due to inherent sensitivity of the camera sensor. Both of these pieces were photographed under identical illumination with minimal post capture editing. The natural color of the two specimens is actually quite different.
| Mineral: | Dioptase |
| Locality: | | Gautala, Mindouli District, Pool Department, Republic of the Congo |  |
|
| Dimensions: | 7.5 x 4.5 x 1.4 cm |
| Description: |
| A thin plate of lustrous emerald-green dioptase crystals. |
|
| Viewed: |
1233 Time(s) |
|
| Mineral: | Dioptase |
| Locality: | | Gautala, Mindouli District, Pool Department, Republic of the Congo | |
|
| Dimensions: | 8.0 x 6.0 x 2.5 cm |
| Description: |
| Lustrous emerald-green dioptase crystals forming a concave plate. |
|
| Viewed: |
1232 Time(s) |
|
|
|
| Back to top |
|
 |
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2231
Location: Oklahoma
|
| Posted: May 01, 2025 09:04 Post subject: Re: Collection of Michael Shaw |
|
|
| Mineral: | Azurite |
| Locality: | | M'Fouati, M'Fouati District, Bouenza Department, Republic of the Congo | |
|
| Dimensions: | 4.4 x 2.3 x 1.3 cm |
| Description: |
| Lustrous bladed deep blue azurite crystals to 0.6 cm covering the top of a pale brown matrix from the Yanga Koubenza deposit. |
|
| Viewed: |
1132 Time(s) |
|
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2231
Location: Oklahoma
|
| Posted: May 05, 2025 08:26 Post subject: Re: Collection of Michael Shaw |
|
|
| Mineral: | Cassiterite |
| Locality: | | Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal | |
|
| Dimensions: | 5.8 x 4.1 x 2.8 cm |
| Description: |
| Lustrous partially gemmy dark brown cassiterite crystals on a matrix of silvery muscovite, with several quartz crystals on the reverse side. |
|
| Viewed: |
949 Time(s) |
|
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2231
Location: Oklahoma
|
| Posted: May 07, 2025 10:22 Post subject: Re: Collection of Michael Shaw - Quartz ps. after Barite |
|
|
| Mineral: | Quartz |
| Locality: | | Warm Springs, Hot Creek Range, Tybo District, Nye County, Nevada, USA | |
|
| Dimensions: | 7.0 x 5.0 x 4.6 cm |
| Description: |
| Sugary-textured quartz forming a hollow epimorph of barite crystals. |
|
| Viewed: |
835 Time(s) |
|
| Mineral: | Quartz |
| Locality: | | Warm Springs, Hot Creek Range, Tybo District, Nye County, Nevada, USA | |
|
| Dimensions: | 7.0 x 5.0 x 4.6 cm |
| Description: |
|
| Viewed: |
835 Time(s) |
|
|
|
| Back to top |
|
|
James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1463
Location: Cambridge
|
| Posted: May 07, 2025 14:13 Post subject: Re: Collection of Michael Shaw |
|
|
| I love epimorphs
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2231
Location: Oklahoma
|
| Posted: May 13, 2025 08:04 Post subject: Re: Collection of Michael Shaw - Wulfenite from the Type Locality |
|
|
| Mineral: | Wulfenite |
| Locality: | | Stefanie Mine, Bleiberg mining area, Bad Bleiberg, Villach-Land District, Carinthia/Kärnten, Austria | |
|
| Dimensions: | 7.5 x 4.0 x 2.0 cm |
| Description: |
| An aggregate of thin platy crystals of yellow-orange wulfenite with beveled edges covering both sides of the specimen. Recovered from the 12th Level in 1975. |
|
| Viewed: |
561 Time(s) |
|
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2231
Location: Oklahoma
|
| Posted: May 18, 2025 18:15 Post subject: Re: Collection of Michael Shaw |
|
|
Another Austrian piece
| Mineral: | Siderite |
| Locality: | | Hüttenberg, Sankt Veit an der Glan, Carinthia/Kärnten, Austria | |
|
| Dimensions: | 7.1 x 5.8 x 2.7 cm |
| Description: |
| Medium brown rhombic siderite crystals to 2.0 cm with accenting white dolomite crystals. |
|
| Viewed: |
220 Time(s) |
|
|
|
| Back to top |
|
|
Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4237
Location: Germany
|
| Posted: May 20, 2025 07:48 Post subject: Re: Collection of Michael Shaw |
|
|
| The Austrian wulfenite is very very nice!
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2231
Location: Oklahoma
|
| Posted: May 20, 2025 13:59 Post subject: Re: Collection of Michael Shaw |
|
|
| Tobi wrote: | | The Austrian wulfenite is very very nice! |
Thank you Tobi. I have been on the lookout for a wulfenite from the type locality for quite some time now. There are very few on the market here in the U.S. I found this one in Tucson (actually Laura found it and brought it to my attention). As soon as I saw it, I knew that I shouldn't let this one get away.
|
|
| Back to top |
|
|
|
FAQ 
Register
Log in
Forgotten your password?
