| Name: | Tinzenite Tnz |
| IMA Chemistry: | Ca2Mn2+4Al4[B2Si8O30](OH)2 |
| Chemistry Elements: | The mineral Tinzenite contains elements: Calcium (Ca) Manganese (Mn) Aluminum (Al) Boron (B) Silicon (Si) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | Switzerland |
| Year First Published: | 1968 |
| IMA Status: | Approved,Redefined |
| Status Notes: | Jakob J (1923) Vier Mangansilikate aus dem Val d'Err (Kt. Graubünden). Schweizerische Mineralogische und Petrographische Mitteilungen 3, 227-237 Tinzenite is identified as Ca-poor axinite and its chemical formula revised from H_2_Ca_3_Al_4_Mn^3+^_4_Si_8_O_32_ to H(Ca,Mn,Fe,Mg)_3_Al_2_BSi_4_O_16_: Milton C A, Hildebrand F A, Sherwood A M (1953) The identity of tinzenite with manganoan axinite. American Mineralogist 38, 1148-1158 Redefined: Sanero E, Gottardi G (1968) Nomenclature and crystal-chemistry of axinites, American Mineralogist 53, 1407-1411 Chemical formula revised from Ca_6_Al_4_[B_2_Si_8_O_30_](OH)_2_ to Ca_2_Mn^2+^_4_Al_4_[B_2_Si_8_O_30_](OH)_2_: Grew E S (2018) Tinzenite, a member of the axinite group with formula revised to Ca_2_Mn_4_^2+^Al_4_[B_2_Si_8_O_30_](OH)_2_. European Journal of Mineralogy 30, 177-182 |
| Structural Group Name: | Axinite |
| Fleischer's Group Name: | axinite |
| Crystal Systems: | triclinic |
| Oldest Known Age: | 247 Million Years Ago |
| More Info: | Search Wikipedia: Tinzenite (Wiki) Search Mindat: Tinzenite Search Web Mineral DB: Tinzenite |