Description: YOU ARE BIDDING ON 1 3.38 oz CALCITE CRYSTAL CLUSTER THIS CRYSTAL IS ABOUT 2 3/8 INCHES LONG & 2 1/8 INCHES WIDE & 1 INCHES THICK.BEAUTIFUL MICRO CRYSTALS ON THE BACK OF THIS SPECIMEN. THIS CRYSTAL WAS FOUND ON A GIANT ROCK ALONG THE BEACH NEAR THE END OF TOPANGA CANYON IN CALIFORNIA. THIS IS A PIECE OF THE CIRCULAR POCKET THAT WAS IN THE GIANT BOULDER. THIS GIANT ROCK IS STILL THERE.. BEAUTIFUL CRYSTAL. THIS IS A NICE CALCITE CRYSTAL CLUSTER.THIS IS AN AWESOME SPECIMEN.PERFECT STOCKING STUFFER. YOU WILL GET THE CRYSTAL YOU SEE IN THE PICTURES. INFORMATION ABOUT THIS CRYSTAL:Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). It is a very common mineral, particularly as a component of limestone. Calcite defines hardness 3 on the Mohs scale of mineral hardness, based on scratch hardness comparison. Large calcite crystals are used in optical equipment, and limestone composed mostly of calcite has numerous uses.Other polymorphs of calcium carbonate are the minerals aragonite and vaterite. Aragonite will change to calcite over timescales of days or less at temperatures exceeding 300 °C, and vaterite is even less stable.Calcite has numerous habits, representing combinations of over 1000 crystallographic forms. Most common are scalenohedra, with faces in the hexagonal {2 1 1} directions (morphological unit cell) or {2 1 4} directions (structural unit cell); and rhombohedral, with faces in the {1 0 1} or {1 0 4} directions (the most common cleavage plane). Habits include acute to obtuse rhombohedra, tabular habits, prisms, or various scalenohedra. Calcite exhibits several twinning types adding to the variety of observed habits. It may occur as fibrous, granular, lamellar, or compact. A fibrous, efflorescent habit is known as lublinite. Cleavage is usually in three directions parallel to the rhombohedron form. Its fracture is conchoidal, but difficult to obtain.Scalenohedral faces are chiral and come in pairs with mirror-image symmetry; their growth can be influenced by interaction with chiral biomolecules such as L- and D-amino acids. Rhombohedral faces are not chiral. Wikipedia PLEASE PAY FOR YOUR ITEM WITH-IN 3 DAYS OF WINNING THE AUCTION. THANK YOU!! **YOU WILL LOVE THIS CRYSTAL** LOOKS GREAT. GET THIS 1 TODAY.. ALL ITEMS ARE SOLD AS IS, NO REFUNDS OR RETURNS
Price: 13 USD
Location: Richmond, Virginia
End Time: 2024-12-12T21:32:40.000Z
Shipping Cost: 6.65 USD
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All returns accepted: ReturnsNotAccepted
Shape: Natural
