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Many USA glass factories would dispose of the left over glass in the furnaces when they changed colors or closed up shop, or had to repair a cracked furnace. I have seen especially Fenton glass slag/l ...

Thanks and A nice article however using two different browsers no images to be seen.

Thank you for the information. It weighs 3 lb 1.5 oz = 1403.301395 grams and is still oily V's the above pieces that fit in my ultrasonic cleaner which removed much dirt and oil.

PYRITE : FeS2 from the Rensselear Quarry
Pleasant Ridge, Jasper Co., Indiana
Now closed and flooded.

Pyrite tubes and bitumen from the Devonian of Indiana,
Black = bitumen (petroleum residue ...

I have a specimen with pyrite tubes. Do you know what causes that?

Item #3 marcasite / pyrite. after cleaning. Known for the oil shale and oil residue.

Thank you, it was purchased at a rock show and was tagged that way.

my records show that it weighs 108 grams.

PYRITE : FeS2 from the Rensselear Quarry
Pleasant Ridge, Jasper Co., Indiana
Marcasite on pyrite on a couple.

Item # 3

PYRITE : FeS2 from the Rensselear Quarry
Pleasant Ridge, Jasper Co., Indiana
Marcasite on pyrite on a couple.

#1 96 grams #2 268 grams

Chalcedony is a form of microcrystalline quartz and this looks like quartz, so it might contain chalcedony. I have no idea where it is from as it could be from millions of different places

Thanks ...

I acquired this with no information. I have been told it is most likely Chalcedony. Fairly light weight and has a bit of a waxy feel. I would like to know where it may have come from, and what has cau ...

Mineral: Galena and Calcite
Locality: Tri-State District, Jasper County, Missouri, USA
Size:
Description:

Size please?

In storage and cannot measure it..
Bob
______________________ ...

A Tri-State Galena and Calcite.

Are all of the mines in the Tri-State area now permanently closed? As per the U. S. health codes. Any Museums or visitor centers open. I know a lady that worked at one of the mines as did her father.

There are Facebook groups about cleaning minerals and such but unlikely to find someone from your area.

While most of the article went over my head, I do feel that the virus must be blowing in the trade winds or the jet stream. Our face masks as we are told will only help catch the droplets we put out t ...

With further study it is a mineral with quartz crystals in the voids. A purchased item with no information.

Galena and Marcasite
Possible, Viburnum Trend, Reynolds Co., Missouri, United States
This is a very nice group of cubo-octahedral Galena crystals, the largest
with yellow-metallic marcasite crys ...

Another view

Author	Message
Topic: Some beautiful obsidian like rocks
R Saunders Replies: 6 Views: 323	Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Oct 20, 2021 10:24 Subject: Re: Some beautiful obsidian like rocks
R Saunders Replies: 6 Views: 323	Many USA glass factories would dispose of the left over glass in the furnaces when they changed colors or closed up shop, or had to repair a cracked furnace. I have seen especially Fenton glass slag/l ...
Topic: Article on Naica and Gypsum
R Saunders Replies: 4 Views: 409	Forum: Mineralogical Literature Posted: Oct 14, 2021 08:47 Subject: Re: Article on Naica and Gypsum
R Saunders Replies: 4 Views: 409	Thanks and A nice article however using two different browsers no images to be seen.
Topic: A mineralogical trip through the states of USA - Indiana
R Saunders Replies: 132 Views: 119414	Forum: A mineralogical trip through the states of USA Posted: Oct 04, 2021 04:34 Subject: Re: A mineralogical trip through the states of USA - Indiana
R Saunders Replies: 132 Views: 119414	Thank you for the information. It weighs 3 lb 1.5 oz = 1403.301395 grams and is still oily V's the above pieces that fit in my ultrasonic cleaner which removed much dirt and oil.
Topic: A mineralogical trip through the states of USA - Indiana
R Saunders Replies: 132 Views: 119414	Forum: A mineralogical trip through the states of USA Posted: Oct 03, 2021 08:25 Subject: Re: A mineralogical trip through the states of USA - Indiana
R Saunders Replies: 132 Views: 119414	PYRITE : FeS2 from the Rensselear Quarry Pleasant Ridge, Jasper Co., Indiana Now closed and flooded. Pyrite tubes and bitumen from the Devonian of Indiana, Black = bitumen (petroleum residue ...
Topic: Conditions where pyrite/pyritohedra are formed
R Saunders Replies: 16 Views: 1246	Forum: Minerals and Mineralogy Posted: Oct 01, 2021 09:11 Subject: Re: Conditions where pyrite/pyritohedra are formed
R Saunders Replies: 16 Views: 1246	I have a specimen with pyrite tubes. Do you know what causes that?
Topic: A mineralogical trip through the states of USA - Indiana
R Saunders Replies: 132 Views: 119414	Forum: A mineralogical trip through the states of USA Posted: Sep 22, 2021 12:56 Subject: Re: A mineralogical trip through the states of USA - Indiana
R Saunders Replies: 132 Views: 119414	Item #3 marcasite / pyrite. after cleaning. Known for the oil shale and oil residue.
Topic: A Tri-State Galena and Calcite
R Saunders Replies: 9 Views: 1180	Forum: Micros & Macros - Images of Minerals Posted: Sep 22, 2021 10:56 Subject: Re: A Tri-State Galena and Calcite
R Saunders Replies: 9 Views: 1180	Thank you, it was purchased at a rock show and was tagged that way.
Topic: A Tri-State Galena and Calcite
R Saunders Replies: 9 Views: 1180	Forum: Micros & Macros - Images of Minerals Posted: Sep 22, 2021 09:43 Subject: Re: A Tri-State Galena and Calcite
R Saunders Replies: 9 Views: 1180	my records show that it weighs 108 grams.
Topic: A mineralogical trip through the states of USA - Indiana
R Saunders Replies: 132 Views: 119414	Forum: A mineralogical trip through the states of USA Posted: Sep 22, 2021 09:12 Subject: Re: A mineralogical trip through the states of USA - Indiana
R Saunders Replies: 132 Views: 119414	PYRITE : FeS2 from the Rensselear Quarry Pleasant Ridge, Jasper Co., Indiana Marcasite on pyrite on a couple. Item # 3
Topic: A mineralogical trip through the states of USA - Indiana
R Saunders Replies: 132 Views: 119414	Forum: A mineralogical trip through the states of USA Posted: Sep 20, 2021 08:31 Subject: Re: A mineralogical trip through the states of USA - Indiana
R Saunders Replies: 132 Views: 119414	PYRITE : FeS2 from the Rensselear Quarry Pleasant Ridge, Jasper Co., Indiana Marcasite on pyrite on a couple. #1 96 grams #2 268 grams
Topic: Chalcedony?
R Saunders Replies: 2 Views: 543	Forum: What is it? - Where is it from? Posted: Aug 23, 2021 10:54 Subject: Re: Chalcedony?
R Saunders Replies: 2 Views: 543	Chalcedony is a form of microcrystalline quartz and this looks like quartz, so it might contain chalcedony. I have no idea where it is from as it could be from millions of different places Thanks ...
Topic: Chalcedony?
R Saunders Replies: 2 Views: 543	Forum: What is it? - Where is it from? Posted: Aug 23, 2021 08:23 Subject: Chalcedony?
R Saunders Replies: 2 Views: 543	I acquired this with no information. I have been told it is most likely Chalcedony. Fairly light weight and has a bit of a waxy feel. I would like to know where it may have come from, and what has cau ...
Topic: A Tri-State Galena and Calcite
R Saunders Replies: 9 Views: 1180	Forum: Micros & Macros - Images of Minerals Posted: Aug 20, 2021 00:39 Subject: Re: A Tri-State Galena and Calcite
R Saunders Replies: 9 Views: 1180	Mineral: Galena and Calcite Locality: Tri-State District, Jasper County, Missouri, USA Size: Description: Size please? In storage and cannot measure it.. Bob ______________________ ...
Topic: A Tri-State Galena and Calcite
R Saunders Replies: 9 Views: 1180	Forum: Micros & Macros - Images of Minerals Posted: Aug 18, 2021 14:08 Subject: A Tri-State Galena and Calcite
R Saunders Replies: 9 Views: 1180	A Tri-State Galena and Calcite.
Topic: Favourite Galenas?
R Saunders Replies: 36 Views: 32348	Forum: Favourite Minerals Posted: Aug 18, 2021 08:52 Subject: Re: Favourite Galenas?
R Saunders Replies: 36 Views: 32348	Are all of the mines in the Tri-State area now permanently closed? As per the U. S. health codes. Any Museums or visitor centers open. I know a lady that worked at one of the mines as did her father.
Topic: Advice needed on how to get started on a potential project.
R Saunders Replies: 6 Views: 865	Forum: Off-Topic and Introductions Posted: Aug 04, 2021 10:39 Subject: Re: advice needed on how to get started on a potential project.
R Saunders Replies: 6 Views: 865	There are Facebook groups about cleaning minerals and such but unlikely to find someone from your area.
Topic: Stay at home - Coronavirus / Covid-19
R Saunders Replies: 364 Views: 129755	Forum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF Posted: Aug 01, 2021 04:45 Subject: Re: Corona COVID-19 virus - What is it ? Where is it from ?
R Saunders Replies: 364 Views: 129755	While most of the article went over my head, I do feel that the virus must be blowing in the trade winds or the jet stream. Our face masks as we are told will only help catch the droplets we put out t ...
Topic: Unknown quartz?
R Saunders Replies: 0 Views: 865	Forum: What is it? - Where is it from? Posted: Jul 28, 2021 15:43 Subject: Unknown quartz?
R Saunders Replies: 0 Views: 865	With further study it is a mineral with quartz crystals in the voids. A purchased item with no information.
Topic: Favourite Galenas?
R Saunders Replies: 36 Views: 32348	Forum: Favourite Minerals Posted: Jul 20, 2021 08:43 Subject: Re: Favourite Galenas?
R Saunders Replies: 36 Views: 32348	Galena and Marcasite Possible, Viburnum Trend, Reynolds Co., Missouri, United States This is a very nice group of cubo-octahedral Galena crystals, the largest with yellow-metallic marcasite crys ...
Topic: Favourite Galenas?
R Saunders Replies: 36 Views: 32348	Forum: Favourite Minerals Posted: Jul 20, 2021 01:56 Subject: Re: Favourite Galenas?
R Saunders Replies: 36 Views: 32348	Another view