diopside

Violane is a manganese-rich variety of diopside, violet to light blue in colour.

Under these conditions, new minerals like biotite, diopside and scapolite grew.

It can also occur in garnet, diopside and spinel.

It occurs as fracture fillings and incrustations associated with diopside crystals.

Initially, the yellowish to greenish-yellow hiddenites were thought to be gemmy diopside.

Associated minerals include chalcocite, atacamite, native copper, diopside, grossular and vesuvianite.

It occurs in retrograde metamorphic environment as fractures cutting garnet diopside skarn.

The major constituents are similar to those of a basalt: orthopyroxene, olivine, plagioclase feldspar and diopside.

Grossular is found in contact metamorphosed limestones with vesuvianite, diopside, wollastonite and wernerite.

A substantial amount of crystalline silicates such as olivine, anorthite and diopside were found, materials only formed at high temperature.

"Sensor scans indicate recrystallized dolomite with trace amounts of iron oxide and diopside.

At higher metamorphic grades, anthophyllite, enstatite, olivine and diopside dominate as the rock mass dehydrates.

Accessory minerals include alabandite, apatite, chromite, daubréelite, diopside, graphite.

These minerals include chromite, pyrope, diopside, picroilmenite, forsterite, orthopyroxene, as well as small diamonds.

Other minerals often associated with hardystonite are franklinite, diopside, andradite garnet, and esperite (fluoresces yellow).

The minerals that accompany them are calcite, epidote, vesuvianite, garnet, wollastonite, diopside and amphibole.

Vesuvianite, wollastonite, garnet, diopside, willemite, johannsenite, margarosanite and clinohedrite also may be present.

Bystrite occurs in lazurite deposits, and is usually associated with lazurite, calcite, and diopside.

It is associated with various mixed iron-titanium oxides, graphite, analcime, diopside, ilmenite, phlogopite and rutile.

Many of them contain calcite or are very rich in calc-silicates (wollastonite, diopside, etc.), which suggests that they were originally impure limestones.

Associated minerals include garnets, vesuvianite, diopside, tremolite, epidote, plagioclase feldspar, pyroxene and calcite.

Additional phases: ilmenite (ilm); diopside (diop).

The glass is alkali-lime-lead-silica and, when the paste was fired or cooled, wollastonite and diopside crystals formed within the glass fragments.

Of these the former consists of orthoclase, nepheline, sodalite, diopside and aegirine, biotite and sphene.

Wüstite in dolomite skarns may be related to siderite (Fe-carbonate), wollastonite, enstatite, diopside and magnesite.