Specification Brand : HQRP-Crystal BulletPoint1 : You will get 20pcs of the Tiger Eye Rough similar to the ones in the listing, the size and the color of the stones may slightly vary as well due to the fact that all minerals are different. (see photo, the photos are taken under bright light, some photos taken wet)! Average 1pc Size: 51mm x 37mm x 15mm / 2 x 1 7/16 x 5/8 Inches; Average 1pc Weight: 20-70g / 0.7-2.4oz; BulletPoint2 : Tiger's eye is normally golden brown to brownish-gold in color but some materials may contain more iron content which can result in more reddish colored. Tiger's eye is typically multicolored with brown, black or golden colored stripes and wavy patterns. Its chatoyancy can result in darker or lighter color tones depending on the viewing angle. BulletPoint3 : Chemical Formula: SiO2, Silicon Dioxide; Hardness: 7; Color: Blue; Red; BulletPoint4 : Tiger's eye is famed for its remarkable chatoyancy and its attractive golden brown red colors. It is closely related to hawk's eye. Tiger's eye is actually formed from hawk's eye. During the pseudomorph transformation process, materials that contain more iron oxide result in brownish tiger's eye; less oxidation and less iron tends toward the original blue color. BulletPoint5 : (The above information is provided solely for informational purpose. Kindly note that all stones are offered for decorative purposes only. Please, handle your stones with great care, do not grind or crumble them, do not dip or add them into your food or drink, do not use any parts of them in any elixirs, potions, lotions etc. Always make sure you wash your hands before and after working with your crystals.) BulletPoint6 : VETERAN-OWNED: We genuinely appreciate your support and know this set will be perfect for your element collection, classroom, science experiment, block display, or educational gifts. Color : Blue & Orange Tiger Eye ExternallyAssignedProductIdentifier1 : 0884667858262 ExternallyAssignedProductIdentifier2 : 884667858262 GradeRating : 99.99% ItemForm : Sheet ItemName : 20PCs Blue & Orange Tiger Eye Rough Stones Natural Unpolished Gemstone Crystal Mineral Rock Raw Specimens - Brazil ItemPackageDimensions_Height : 11.303 centimeters ItemPackageDimensions_Length : 1.905 centimeters ItemPackageDimensions_Width : 8.89 centimeters ItemPackageQuantity : 20 ItemShape : Cube ItemTypeKeyword : science-classroom-specimens Manufacturer : HQRP-Crystal Material : Stone NumberOfItems : 1 PartNumber : Indium-10mm ProductDescription : All our minerals and crystals are carefully measured with digital measuring instruments that provide the high accuracy of numbers/values! ProductSiteLaunchDate : 2023-05-04T08:00:00.000Z Size : 0.39 inch (10mm) SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 54100000