{"product_id":"grandidierite-tansania-typ","title":"Grandidierite- Madagascar (TYP)","description":"\u003cp\u003eRare Grandidierite Aggregate from Madagascar\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eA truly rare, large and continuous aggregate of Grandidierite, one of Madagascar’s most exceptional and sought-after minerals, naturally embedded in a contrasting host-rock matrix.\u003c\/p\u003e\n\u003cp\u003eThe specimen presents the Grandidierite in its original geological setting, with interconnected crystal growth rather than isolated fragments—a particularly desirable feature for serious mineral collectors.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eGrandidierite is a magnesium–iron–aluminium borosilicate that crystallises in the orthorhombic system.\u003c\/p\u003e\n\u003cp\u003e Its characteristic colours range from blue-green and sea-green to deep bluish green, often accompanied by a striking trichroic pleochroism: the colour can change noticeably depending on the viewing direction.\u003c\/p\u003e\n\u003cp\u003eThe mineral was first discovered in southern Madagascar in 1902 and was named after the French explorer and naturalist Alfred Grandidier.\u003c\/p\u003e\n\u003cp\u003eSize: 3.2 x 1.5 x 1 cm\u003c\/p\u003e\n\u003cp\u003eLocality: Madagascar (TYP)\u003c\/p\u003e","brand":"weloveminerals","offers":[{"title":"Default Title","offer_id":57206467658068,"sku":null,"price":42.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/2291\/1572\/files\/IMG_5180-Photoroom.jpg?v=1789799292","url":"https:\/\/weloveminerals.de\/en\/products\/grandidierite-tansania-typ","provider":"weloveminerals","version":"1.0","type":"link"}