Specification AgeRangeDescription : Baby Brand : EISCO BulletPoint1 : Porphyritic granite sample approximately 1" (3cm) in size BulletPoint2 : Large crystals in a variety of shapes and colors make this felsic plutonic rock ideal for lessons in mineral identification and bulk rock chemistry BulletPoint3 : Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements BulletPoint4 : Great for comparing cooling rates between samples with differently-sized crystals BulletPoint5 : Specimen comes in clear labeled and barcoded bag for ideal storage CpsiaCautionaryStatement : choking_hazard_small_parts EducationalObjective : Science ItemName : EISCO Porphyritic Granite Specimen (Igneous Rock), Approx. 1" (3cm) ItemPackageDimensions_Height : 1.524 centimeters ItemPackageDimensions_Length : 10.922 centimeters ItemPackageDimensions_Width : 7.62 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-classroom-specimens Manufacturer : Eisco ManufacturerMinimumAge : 168 Material : Crystals NumberOfItems : 1 OperationMode : Manual PartNumber : ESNG0044 ProductDescription : Granite forms slowly in shallow or evolved magma chambers, and is also commonly found as magmatic intrusions in the crust. The large crystals are indicative of a slow cooling rate, and make mineral identification simple. Granite is a classic igneous rock, and is a must-have sample when discussing rock types, the rock cycle, and the formation, classification, and identification of igneous rocks. This sample is also available in packs of 12. ProductSiteLaunchDate : 2016-07-26T15:26:36.220Z Size : 1 Pack SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable TargetGender : unisex Theme : Shapes