Wollastonite

Wollastonite is silicate of calcium with the composition CaSiO3. This sample is about 7x7 cm and is from Natural Bridge, New York. These samples are displayed in the Smithsonian Museum of Natural History. wollastonite 是一种钙硅酸盐，化学式为 CaSiO₃。这种样品尺寸约为 7 厘米见方，采自纽约的 Natural Bridge。这些样品陈列在史密森尼国家博物馆中。

Mindat: Wollastonite

Pyroxmangite

Pyroxmangite is silicate of manganese with the composition MnSiO3. This sample is about 9x8 cm and is from Taguchi mine, Shidara, Japan. 紫苏锰矿是一种含锰的硅酸盐，其化学式为MnSiO₃。该样品尺寸约为9x8厘米，产自日本龙野市Taguchi矿。

Mindat: Pyroxmangite

Rhodonite

Rhodonite is a silicate with the composition (Mn,Fe,Mg,Ca)SiO₃. The sample above left is formed with galena. It is about 4x8 cm and is from North mine, Broken Hill, New South Wales, Australia. The sample at right is about 6x6 cm and the accompanying gem is labeled 4.9 carats. They are from the same area in Australia.

This sample of rhodonite is on display at the Smithsonian Museum of Natural History. The sample size is about 15x9 cm. It is from the Chiurucu mine, Huanzala, Peru. These crystals get their color from manganese. The sample was recovered from a silver and tungsten mine.

This sample is described as rhodonite with calcite and franklinite. It is from Franklin, NJ. The sample size is about 20x25 cm. 这种样本被描述为含有 rhodonite、calcite 和 franklinite。它来自新泽西州弗兰克林。样本尺寸约为 20x25 厘米。

Mindat: Rhodonite

Chondrodite

Chondrodite is a silicate with the composition (Mg,Fe)5(SiO4)2(F,OH)2. This sample is about 7x9 cm and is from Tilly Foster mine, Brewster, New York. The red crystals are about a cm in size. 角闪石是一种含硅酸盐，化学式为(Mg,Fe)5(SiO4)2(F,OH)2。这块样品尺寸约为7x9厘米，来自纽约布雷斯特的蒂利·福斯特矿。红色的晶体大小约为1厘米。

Mindat: Chondrodite