epidote

The most common disilicates by far are members of the epidote group.

It is a member of the epidote group.

A rock composed of quartz and epidote is known as epidosite.

Mineral deposits such as haematite, calcite and epidote can be seen within these features.

It is named for the two minerals albite and epidote, though they are also stable in other facies.

Besides the common accessories chlorite, epidote and zircon occurs titanite.

The deposits typically have an outer epidote - chlorite mineral alteration zone.

The rock fragments include subrounded basalt, invariably replaced to various degrees by chlorite and epidote.

Hornblende alters easily to chlorite and epidote.

More than 60 minerals can be found on the island, particularly blue glaucophane (observable on the surface), epidote or garnet.

Associate minerals include epidote, titanite, glaucophane, garnet and quartz.

Mica, iron oxides, apatite, zircon, epidote and hornblende may also be present in small amount.

Mineral chemistry and thermobarometry of a southern Appalachian amphibolite with epidote + quartz symplectite.

Mineralogy is chlorite, actinolite, rare epidote, quartz and albite.

In mafic rocks the assemblage is chlorite, prehnite, albite, pumpellyite and epidote.

Lawsonite is a metamorphic silicate mineral related chemically and structurally to the epidote group of minerals.

Older materials can be dated using zircon, apatite, titanite, epidote and garnet which have a variable amount of uranium content.

The other rare minerals found are micas and traces of chlorite, apatite, epidote and garnet.

The greenish hue of these rocks generally derives from the presence of minerals such as chlorite, hornblende, or epidote.

Allanite and dollaseite-(Ce) have the same general epidote formula and contain metals of the cerium group.

Like the rest of the members of the epidote group, the aluminum octahedral in dollaseite-(Ce) share edges, forming endless chains.

Allanite is a sorosilicate group of minerals within the broader epidote group that contain a significant amount of rare earth elements.

Greenschist, as a rock type, is defined by the presence of the minerals chlorite and actinolite and may contain albite or epidote.

Zoisite, first known as saualpite, after its type locality, is a calcium aluminium hydroxy sorosilicate belonging to the epidote group of minerals.

A contact aureole of 2.5 km thickness surrounds the batholith in the form of albite epidote hornfels.