This is a beautiful piece of natural Agate from Uruguay

Color: Medium Dark Purplish Red

Weight:  Fragment 41 mg

These pieces display extremely well and are quality translucent specimen

Iceland Spar | Optical Calcite | 44 Grams | Rhombohedral | China | SO24 Moissanite This is a beautiful pieceIceland 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