{"product_id":"chrysoberyl-variety-alexandrite-in-schist-campo-formosa-bahia-brazil","title":"Chrysoberyl (variety Alexandrite) in schist, Campo Formosa, Bahia, Brazil","description":"\u003cp\u003eHere is a classic Brazilian mineral specimen: a nice alexandrite crystal cluster. Alexandrite is a special variety of chrysoberyl that changes colour when exposed to different light sources. For alexandrite, it is red in incandescent (artificial) light - as seen in these photos - but will be green in strong daylight. Most of the material from Bahia is opaque and included like this specimen but the colour change is certainly fun. I personally enjoy gem minerals still embedded in their host rock too. I feel this gives the specimen better geologic context for understanding its formation. This specimen's matrix is composed of schist which reveals a metamorphic environment of formation. Ex Rob Belcher collection. Mounted on an acrylic base. From: Campo Formosa, Bahia, Brazil. Dimensions: 5.5 cm x 4.5 cm\u003c\/p\u003e","brand":"Rocky Mountain Minerals and Fossils","offers":[{"title":"Default Title","offer_id":52341026586906,"sku":null,"price":375.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6011\/1386\/files\/IMG_4868.jpg?v=1781128165","url":"https:\/\/keithrocks.ca\/products\/chrysoberyl-variety-alexandrite-in-schist-campo-formosa-bahia-brazil","provider":"Rocky Mountain Minerals and Fossils","version":"1.0","type":"link"}