Search results
Results from the WOW.Com Content Network
Garnierite is a green mineral, ranging from light yellow-green to dark green. [3] [5] The color comes from the presence of nickel in the mineral structure for magnesium. [4] Noumeaite (later determined to be a member of the garnierite family) varies in hardness, from soft and brittle to hard enough to carve into figurines and the like. [11]
Antlerite is a greenish hydrous copper sulfate mineral, with the formula Cu 3 (SO 4)(OH) 4.It occurs in tabular, acicular, or fibrous crystals with a vitreous luster. Originally believed to be a rare mineral, antlerite was found to be the primary ore of the oxidised zones in several copper mines across the world, including the Chuquicamata mine in Chile, and the Antler mine in Arizona, US from ...
Associated minerals include metavivianite, ludlamite, pyrite, siderite and pyrrhotite. [2] [11] Hydrothermal veins produce the best crystal specimens with the classic gemmy green color. [11] The type locality is Wheal Kind (Wheal Kine), West Wheal Kitty group, St Agnes, St Agnes District, Cornwall, England. [3]
Garnet does have other color varieties, including orange, green, purple, blue and yellow. A garnet's color depends on its chemical composition, according tothe International Gem Society.
The bright green, lustrous antigorite richly covering this specimen has an unusual knobby/bubbly/drusy form. Bowenite (Antigorite) from Asbestos mine, Thurman Township, Warren County, New York, US Polished slab of bowenite serpentine, a variety of antigorite.
It was first described as a distinct mineral only in the 18th century. [9] Green and greenish-blue varieties of potassium feldspars that are predominantly triclinic are designated as amazonite. [10] It has been described as a "beautiful crystallized variety of a bright verdigris-green" [11] and as possessing a "lively green colour". [4]
Malachite is a copper carbonate hydroxide mineral, with the formula Cu 2 CO 3 (OH) 2.This opaque, green-banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures and deep, underground spaces, where the water table and hydrothermal fluids provide the means for chemical precipitation.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!