titanite वाक्य

As a gemstone, titanite is usually some shade of chartreuse, but can be brown or black.
Minerals such as glaucophane, lawsonite, titanite, and epidote occur with omphacite in blueschist facies metamorphic rocks.
Jewelry use of titanite is limited, both because the stone is uncommon in gem quality and is relatively soft.
Common titanium-containing minerals are minerals anatase, brookite, ilmenite, perovskite, rutile, and titanite ( sphene ).
It differs from titanite only in that calcium is substituted by up to 12 percent ( Y, Ce ) 2 O 3.

Older materials can be dated using zircon, apatite, titanite, epidote and garnet which have a variable amount of uranium content.
There are also some tiny crystals of two minerals, allanite and titanite, that contain radioactive elements such as uranium and thorium.
It is observed in some igneous rocks and iron ore deposits as the result of the alteration of ilmenite, perovskite, or titanite.
The accessory minerals are apatite, cancrinite, calcite, titanite and iivaarite, a dark-brown titaniferous variety of melanite-garnet.
Within the lava dome rocks lie phenocrysts of amphibole, biotite, plagioclase, quartz, and titanite with some alkali feldspar in some domes.