Vivianite

A spectacular, off-matrix specimen of beautifully crystallised Vivianite from the tin-mining region around Llallagua at Rafael Bustillo in Potosí, Bolivia.  Almost coal-black in reflected light, the Vivianite is a gorgeous electric deep limey-bottle-green in transmitted light.  The crystals, which are developed to 5.0 x 1.6 x 1.0 cm, form grouped clusters in parallel growth, are transparent to translucent and have a brilliant glassy lustre.  All crystals are perfectly terminated and the specimen shows no bruising of any kind.  A splendid and quite show-stopping Vivianite from Llallagua in Bolivia.  If this cabinet specimen can be displayed backlit it will be stunning.  What appear as almost opaque crystals in reflected light are revealed to be transparent to gemmy in transmitted light.  The specimen is accompanied with a Kristalldruse München label.