365g 3.2" Rose Quartz Rough for Fish Tank Pink Crystal Decor Stone Natural Mineral Rock - Brazil (#2) You will receive exactly this Rose Quartz Rough - 81mm x 70mm x 54mm / 3 3/16 x 2 3/4 x 2 1/8 Inches; 365g / 12.9 oz (see photo, some photos are taken wet, stand not included)! Rose quartz is a type of quartz which exhibits a pale pink to rose red hue. The color is usually considered as due to trace amounts of titanium, iron, or manganese, in the massive material. Some rose quartz contains microscopic rutile needles which produces an asterism in transmitted light. Chemical Composition: SiO2; Mohs scale hardness: 6-7; Color: Pink, Rose; Quartz is the most abundant and widely distributed mineral found at Earth's surface. It is present and plentiful in all parts of the world. It forms at all temperatures. It is abundant in igneous, metamorphic and sedimentary rocks. It is highly resistant to both mechanical and chemical weathering. (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.)