{"product_id":"selenite-sphere","title":"Selenite Sphere","description":"\u003cp\u003eThese polished spheres are made from natural selenite, a transparent to translucent variety of gypsum known for its pearly luster and fibrous structure. Selenite spheres are often used for display, highlighting the mineral’s clarity and natural striations.\u003c\/p\u003e\n\u003cp\u003eDetails:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Natural selenite (CaSO₄·2H₂O)\u003c\/li\u003e\n\u003cli\u003eSize: Small, about 1 inch in diameter (exact size may vary)\u003c\/li\u003e\n\u003cli\u003eAppearance: Smooth, polished spheres; translucent to transparent with subtle striations\u003c\/li\u003e\n\u003cli\u003eFormation: Forms in evaporite deposits from the evaporation of sulfate-rich waters\u003c\/li\u003e\n\u003cli\u003ePhysical Properties: Mohs hardness 2; vitreous to pearly luster; soft and easily scratched\u003c\/li\u003e\n\u003cli\u003eEducational Value: Demonstrates sulfate mineral formation, crystal habit, and fibrous mineral structure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese small selenite spheres are a simple and elegant way to explore gypsum’s properties and crystal formation.\u003c\/p\u003e","brand":"The Science Museum of Minnesota","offers":[{"title":"Default Title","offer_id":47750016598230,"sku":"R599","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/2491\/1830\/files\/224-SeleniteSpheres_1_0d3bad2c-15b0-45a0-9854-e81da0cbbd27.webp?v=1769021899","url":"https:\/\/threecrows.com.co\/fr\/products\/selenite-sphere","provider":"ThreeCrowsLLP","version":"1.0","type":"link"}