These rocks are mainly composed of chlorite, plagioclase, clinozoisite
7%) wasasubhedral grains; optical studies identified both zoisite and clinozoisite
In addition, rare tails of chlorite and clinozoisite
have grown parallel to [S.
Around 50 thousand tonnes of tungsten ore deposits have been estimated recently which occur in 300 km long belt main scheelite mineralization occurs, in the Mineki Gole and adjoining area, consisting of mica schist, carbonates, clinozoisite
, calc-silicate quartzite, tourmaline, phyllite and feldspar rocks (Khan et ah, 2003).
A crystal showing this habit has been positively identified by Raman analysis as zoisite rather than clinozoisite
chlorite biotite schist, clinozoisite
feldspar rock fragment, altered feldspar-titanite-biotite replaced amphibole-clinozoisite
rock fragment, amphibole-rich rock fragments, and garnet-banded biotite quartz rock fragment.
These mineral species described are: Hornblende, Epidote, Piemontite, Chabazite, Prehnite, Pyrite, Chalcopyrite, Clinozoisite
, Dravite var Tourmaline, Chlorite, Garnet var Almandine, Sulphur (as free crystals), Calcite, Kaolinite, Hyalite Opal.
This stone is a form of clinozoisite
unique to Tanzania that has found a wide acceptance by the market.
Tanzanite, a rare blue gemstone variety of clinozoisite
, has been mined mainly illegally, but police evicted about 30,000 squatters in late 1990.
The alteration products include clays, epidote, clinozoisite
, white mica and quartz.
com) is primarily a dealer in gem rough and in cut gems, but when he came to the InnSuites this year he also had about 20 beautiful, loose, singly terminated crystals of clinozoisite
from Alchuri, Pakistan, asking just $30 apiece.
These data aid in the calculation of an activity for clinozoisite
(Czo) in the P-T calculations below.