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Post by mohs on Jul 23, 2021 10:33:24 GMT -5
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hardyv
off to a rocking start
I wonder how this will go..
Member since November 2021
Posts: 2
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Post by hardyv on Nov 15, 2021 22:42:54 GMT -5
That is so cool!!! I love to think that than little piece of the moon probably came from the very earth itself, millions, if not billions of years ago!
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sweatpea
off to a rocking start
Member since October 2022
Posts: 4
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Post by sweatpea on Nov 2, 2022 9:13:29 GMT -5
Ok i have three very different feldspar piles. They all are very showy with amazing schiller. One is a twin crystal each crystal is or was about 2 inches square it is white with a slight bluish and when cut at the best angle puts on an amazing purlesence show. The next runs from pink to turquoise with a fishscale pattern white to blood red. When cut at the best angle this one has a rainbow schiller (amozonite?). The final one is made of layers of clear green and white with some black patches and is definitely peristerite.
My question is does all feldspar have this schiller if it is cut correctly. What var is so pure white with pail blue veins, is it possible to be peristerite aswell. It seems to be such a perfect crystal and the green and white peristerite seem more to be madsive in form.
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Post by vegasjames on Nov 2, 2022 9:28:33 GMT -5
Ok i have three very different feldspar piles. They all are very showy with amazing schiller. One is a twin crystal each crystal is or was about 2 inches square it is white with a slight bluish and when cut at the best angle puts on an amazing purlesence show. The next runs from pink to turquoise with a fishscale pattern white to blood red. When cut at the best angle this one has a rainbow schiller (amozonite?). The final one is made of layers of clear green and black and is definitely peristerite. My question is does all feldspar have this schiller if it is cut correctly. What var is so pure white with pail blue veins. No. some feldspars you will not see any schiller. For example, look at the orthoclase feldspar of unakite. |
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Post by mohs on Nov 2, 2022 10:35:35 GMT -5
here is some schiller on Pennsylvania moonstone  orthoclase feldspar ? microcline ? the feldspar group is chemically complicated geological process sure do like the gleam in the desert rocks lot of that may be mica and chlorite which may not be part of the feldspar group |
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Post by rockjunquie on Nov 2, 2022 11:10:48 GMT -5
here is some schiller on Pennsylvania moonstone orthoclase feldspar ? microcline ? the feldspar group is chemically complicated geological process sure do like the gleam in the desert rocks lot of that may be mica and chlorite which may not be part of the feldspar group Sounds confusing! Nice heart, though! |
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sweatpea
off to a rocking start
Member since October 2022
Posts: 4
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Post by sweatpea on Nov 2, 2022 12:12:52 GMT -5
I am getting it now albite feldspar can be translucent to transparent, white grey green blue red pink and the pearly colour is common. So l my samples are albite. And beyond that they are not showing sparkly schiller but labradorecence.
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Post by mohs on Nov 2, 2022 13:14:49 GMT -5
Welcome to RTH sweetpea your very descriptive w/ words maybe pictures are forthcoming ? more importantly were they self collected and what area are they from? if ya know EdMohs |
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Nov 15, 2024 17:44:51 GMT -5
Nov 15, 2024 17:44:51 GMT -5
