US$ 38.00
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its surface tarnishes in a variety of minerals including bornite or rarely malachite and azurite
Quantity: 2 kilograms
Listing is for (10 kilograms
Average size range: 4 to 10 millimeters
Tumbled Prehnite / 20-40mm AVG - 1 KILO LOT Menu slabs and slices its surface tarnishes in aQuantity: 1 kilogram Average size range: 20 to 40 millimeters Prehnite is a semi brittle gemstone that most often forms as globules, stalactites, or in botryoidal growths. While not a zeolite itself, it is often found near zeolite deposits like heulandite or stilbite, and it was first found in what is now South Africa in the late 1700s.
US$ 38.00
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