An outstanding gem quality

Strand Length: 40 cm / 15

Name: Olivine Crystal BombSpecimen Size:  Cabinet-Sized Dimensions: 69x39x28 mm / 2

vu and a Canagem specimen card plus a professional metal label

Sunstone is a type of feldspar

Iceland Spar | Optical Calcite | 59 Grams | Rhombohedral | China | SO24 Spodumene An outstanding gem qualityIceland Spar, also known as optical calcite, is a clear, transparent variety of calcite famous for its unique optical property called double refraction. When you place the crystal over text or an image, it appears doubled a visual effect that occurs because light splits into two rays as it passes through the crystal. This fascinating trait made Iceland spar historically important in early optical instruments and scientific studies, including