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Joined: 05 Jan 2018
Location: Beacon NY
Posted: Apr 16, 2022 07:18 Post subject: Re: Milky Quartz?
these are quartz crystals, and geologically-speaking they have epitaxial quartz growing over the prism faces, which is to say that they have tiny quartz crystals growing on the main elongate faces. Other than some iron-staining, they appear to be colourless which in the more opaque crystals appears as white, which some may describe as "milky", which some may call "milky". There is a hint of purple in some, but unclear if that is real or just an effect of the lighting. If it is real, they might be described as "amethystine".
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Joined: 18 Jan 2018
Location: Savannah, Georgia
Posted: Apr 16, 2022 09:20 Post subject: Re: Milky Quartz?
The smaller overgrowth crystals are randomly attached to the underlying host crystals. These are probably from the Orange River area of South Africa which have been given other appellations than milky quartz, all of which are just descriptive of the overgrowth habit.
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