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Discovered the 1960s, the rich green tsavorite variety of grossular is also very popular.
Viluite is a variety name of grossular, that is not a recognized mineral species.
Grossular garnet from Kenya and Tanzania has been called tsavorite.
The other author to introduce viluite was Severgin, who used it in reference to what is widely known as grossular, a member of the garnet group.
Associated minerals include chalcocite, atacamite, native copper, diopside, grossular and vesuvianite.
At the Kazabazua River, marble is calcitic and contains crystals of graphite and grossular garnet.
One of the most sought after varieties of gem garnet is the fine green grossular garnet from Kenya and Tanzania called tsavorite.
Hessonite or Cinnamon Stone, is a more common variety of grossular with the general formula: CaAlSiO.
The minerals that wiluite and viluite refer to have often been confused, and may refer to grossular, or wiluite.
Grossular - CaAl(SiO)
A monoclinic mineral, clinohumite is typically a dark to light brownish or orangy yellow, somewhat resembling the hessonite variety of grossular.
The endmembers of the hydrogarnet family (grossular, hibschite, and katoite) depend on the degree of substitution (x):
It occurs associated with vesuvianite, chlorite, magnetite, rutile, diaspore, grossular, calcite, diopside and clinozoisite in various locations.
Tsavorite or tsavolite is a variety of the garnet group species grossular, a calcium-aluminium garnet with the formula CaAlSiO.
Associated minerals include calcite, dolomite, grossular, wollastonite, talc, diopside, forsterite, cummingtonite, riebeckite and winchite.
Manganvesuvianite has been found in association with calcite, manganese-poor grossular, hydrogrossular-henritermierite, mozartite, serandite-pectolite, strontiopiemontite-tweddillite, and xonotlite.
They are pyrope, almandine, spessartine, grossular (varieties of which are hessonite or cinnamon-stone and tsavorite), uvarovite and andradite.
It occurs with talc, spinel, grossular, vesuvianite, clinopyroxene, monticellite, chondrodite, phlogopite, chlorite, quartz, calcite and dolomite.
Both grossular and andradite are isotropic and have relatively high RIs (ca. 1.74 and 1.89, respectively) and high dispersions (0.027 and 0.057), with demantoid's exceeding diamond.
Minerals associated with humite include grossular, wollastonite, forsterite, monticellite, cuspidine, fluoborite, ludwigite, dolomite, calcite, talc, biotite, spinel, vesuvianite, sanidine, meionite and nepheline.
Minerals associated with brownmillerite in the Mayen locality include calcite, ettringite, wollastonite, larnite, mayenite, gehlenite, diopside, pyrrhotite, grossular, spinel, afwillite, jennite, portlandite and jasmundite.
Grossular or grossularite is a calcium-aluminium mineral species of the garnet gemstone group with the formula CaAl(SiO), though the calcium may in part be replaced by ferrous iron and the aluminium by ferric iron.
Ruizite occurs in association with apophyllite, bornite, calcite, chalcopyrite, datolite, diopside, grossular, inesite, junitoite, kinoite, orientite, pectolite, quartz, smectite, sphalerite, vesuvianite, and wollastonite.
In 1967, British gem prospector and geologist Dr. Campbell R. Bridges discovered a deposit of green grossular in the mountains of north-east Tanzania in a place called Lemshuko, 15 km away from Komolo, the first village.
Słownik geologiczny