Size 6 x 4 x 4 cm - weight 117 grams Jarosite fantastic and very rare specimen in the quality of. very shiny in gold color. Note: Greek Jarosite specimens are among the most brilliant quality of the species. From ''Hilarion'' Mine, Kamariza area sounio Lavrion Mining District, Lavreotiki, East Attica, Greece with acrylic support base note the stand is very easy to detach Jarosite is a mineral hydrate of potassium and iron (trivalent) sulphate. His name owes it to the Barranco del Jaroso region of Spain, Investigations reveald that jarosite containing up to 4600 g/t Ag and up 8,50 g/t Au, is precious metal carrier and for this reasons it can be considered as "indicator" for gold and silver concentrations Extraterrestrial Presence: Discovered on Mars by the Opportunity rover, indicating the existence of water in the past. will be sent with a security number