| Haggertyite | |
|---|---|
| General | |
| Category | Oxide mineral |
| Formula | Ba(Fe2+6Ti5Mg)O19 |
| IMA symbol | Hgt[1] |
| Strunz classification | 4.CC.45 |
| Crystal system | Hexagonal |
| Crystal class | Dihexagonal dipyramidal (6/mmm) H-M symbol: (6/m 2/m 2/m) |
| Space group | P63/mmc |
| Unit cell | a = 5.926, c = 23.32 [Å]; Z = 2 |
| Identification | |
| Color | Gray |
| Crystal habit | Microscopic hexagonal platelets |
| Mohs scale hardness | 5 |
| Luster | Metallic |
| Diaphaneity | Opaque |
| Specific gravity | 4.87 (calculated) |
| References | [2][3] |
Haggertyite is a rarebarium,iron,magnesium,titanate mineral: Ba(Fe2+6Ti5Mg)O19 first described in 1996 from theCrater of Diamonds State Park nearMurfreesboro inPike County, Arkansas. The microscopic metallic mineral crystallizes in thehexagonal system and forms tiny hexagonal plates associated withrichterite andserpentinitizedolivine ofmaficxenoliths in thelamproite host rock. It is an iron(II) rich member of themagnetoplumbite group. It is a light grey opaque mineral with calculatedMohs hardness of 5.
It was named forgeophysicistStephen E. Haggerty (born 1938) of theFlorida International University.
| Oxide minerals |
| ||||
|---|---|---|---|---|---|
| Silicate minerals | |||||
| Other | |||||
This article about a specificoxide mineral is astub. You can help Wikipedia byexpanding it. |
