Tumbled Prehnite / 20-40mm AVG - 1 KILO LOT Menu Flames 75" in diameter

75" in diameter

Avg Size Range: (4 to 8 inches)

a volcanic rock that contains larger inclusions in a fine-grained stone

Listing is for (500 to 750 grams)

Conglomerate jasper incorporates white quartz and various gravel sands that were caught and compressed by ancient glaciers

Tumbled Prehnite / 20-40mm AVG - 1 KILO LOT Menu Flames 75" in diameterQuantity: 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.