titanite उदाहरण वाक्य

An example of the mineral, which possesses strong magnetic properties is the mineral magnetite, lodestone, from Tortola, British Virgin Islands; found in igneous plutonic rocks formations, composed of several minerals, including quartz, plagicase, alkali feldspar, biotite and titanite.
It occurs as miarolytic cavity fillings of alkalic pegmatites in the Kola occurrence and in nepheline syenite in the Magnet Cove igneous complex of Arkansas, US . Its mineral association includes cafetite ( which with it is also polymorphous ), perovskite, titanite, rutile and ilmenite.
The following minerals are also found in the veins of cleusonite; quartz, chlorite, calcite, albite, microcline, tourmaline, fluorapatite, zircon, ilmenite, hematite, titanite, pyrite, chalcopyrite, tennantite, rutile, crichtonite, monazite-( Ce ), and native gold.
At the same locality it was found in alkaline pegmatite veins associated with clinobarylite, natrolite, aegirine, microcline, catapleiite, fluorapatite, titanite, fluorite, galena, sphalerite, annite, astrophyllite, lorenzenite, labuntsovite-Mn, kuzmenkoite-Mn, cerite-( Ce ), edingtonite, ilmenite and calcite.
Titanite or sphene is also seen in antique jewelry; it is typically some shade of chartreuse and has a luster, RI ( 1.885 2.050 ), and dispersion ( 0.051 ) high enough to be mistaken for diamond, yet it is anisotropic ( a high birefringence of 0.105 0.135 ) and soft ( hardness 5.5 ).

Dr . John H . Harvey Pirie, a geologist aboard the " Scotia " described the rock as " a fine-grained greywacke of a blue-grey or greenish-grey colour . " The greywacke contained grains of many different minerals, quartz being the most numerous, along with plagioclase feldspar, titanite, zircon, biotite, chlorite, and veins of calcite.