Lawsonite
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Lawsonite is a hydrous calcium aluminium sorosilicate mineral with formula CaAl2Si2O72·H2O. Lawsonite crystallizes in the orthorhombic system in prismatic, often tabular crystals. Crystal twinning is
Sample from the type locality in California with two elongated, lustrous and translucent crystals of pastel pink, lawsonite in mica schist. Size: 6.1 cm × 3.2 cm × 2.5 cm (2.4 in × 1.3 in × 1.0 in)
Eclogite
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Eclogite is a metamorphic rock containing garnet hosted in a matrix of sodium-rich pyroxene. Accessory minerals include kyanite, rutile, quartz, lawsonite, coesite, amphibole, phengite, paragonite, zo
Lawsonite
…mineral in altered gabbro and diorite. Associate minerals include epidote, titanite, glaucophane, garnet and quartz. It is an uncommon constituent of eclogite. Its scarcity in eclogite that has been exhumed to the Earth's surface does not reflect its abundance at depth in subduction zones but rather the fact…
Eclogite from Norway with a garnet (red) and omphacite (greyish-green) groundmass. The sky-blue crystals are kyanite. Minor white quartz is present, presumably from the recrystallization of coesite. A few gold-white phengite patches can be seen at the top. A 23 millimetres (0.91 in) coin added for scale.
Photomicrograph of a thin section of eclogite from Turkey. Green omphacite (+ late chlorite) + pink garnet + blue glaucophane + colorless phengite.
Eclogite
Eclogite from Almenning, Norway. The red-brown mineral is garnet, green omphacite and white quartz.