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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
No physical copy will be sent
as they are dental grade- but they are great for lapidary use
5cmWeight: 105g
Weight: 16g
is a naturally occurring sodium chloride mineral and one of the most recognizable evaporite minerals in the world
Gold Sheen Obsidian - Mirror Quality:Standard No physical copy will beMined from: Mexico Description: Obsidian is a naturally occurring volcanic glass formed in swiftly cooling lava that has a high silica content. Obsidian is not considered a true mineral, as it does not have an entirely consistent chemical content and it does not form crystals. Obsidian's colour varies, depending on impurities in the parent lava formation. Golden sheen obsidian is formed when patterns of gas bubbles are aligned along layers created by
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