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The name grossular is derived from the botanical name for the gooseberry, grossularia, in reference to the green garnet of this composition that is found in Siberia. Other shades include cinnamon brown (cinnamon stone variety), red, and yellow. Grossular is a gemstone. In geological literature, grossular has often been called grossularite.
Grossular garnet from Quebec, collected by Dr John Hunter in the 18th century, Hunterian Museum, Glasgow Grossular garnets on display at the U.S. National Museum of Natural History. The green gem at right is a type of grossular known as tsavorite .
Tsavorite or tsavolite is a variety of the garnet group species grossular, a calcium-aluminium garnet with the formula Ca 3 Al 2 Si 3 O 12. [2] Trace amounts of vanadium or chromium provide the green color.
Tsavorite is a grossular variety of garnet, and its green color comes from trace amounts of vanadium. In 1970, he discovered deposits of tsavorite in Kenya, with transparent crystals large enough to be made into gemstones, and began selling the stones to Tiffany & Co. for jewelry within a few years.
It is classified in the ugrandite group alongside the other calcium-bearing garnets andradite and grossular. [5] Uvarovite is the rarest of the common members of the garnet group, [6] and is the only consistently green garnet species, with an emerald-green color. It occurs as well-formed fine-sized crystals.
It’s illegal to sell or buy, but casu marzu, a maggot-infested sheep milk cheese is a revered delicacy on the Italian island of Sardinia. Locals hope their unusual dairy product can shed its ...
cordierite + quartz + sillimanite + K-feldspar (orthoclase) ± biotite ± garnet (If the temperature is below 750 °C there will be andalusite instead of sillimanite) cordierite + orthopyroxene + plagioclase ± garnet, spinel; In carbonate rocks: calcite + forsterite ± diopside, periclase; diopside + grossular + wollastonite ± vesuvianite
From ancient history to the modern day, the clitoris has been discredited, dismissed and deleted -- and women's pleasure has often been left out of the conversation entirely. Now, an underground art movement led by artist Sophia Wallace is emerging across the globe to challenge the lies, question the myths and rewrite the rules around sex and the female body.