Chemical Formula: CaMn2+[SiO3(OH)](OH)
Familly: Silicates
Status: IMA-A
Crystal System: Orthorhombic
Mineral for Display: No
UV Type | Main color | Intensity | Observation Frequency |
---|---|---|---|
Long Waves (365nm): | Red | Weak | Short Waves (254 nm): | Red | Medium |
Other colors LW: | Violet red , | ||
Other colors SW: | Violet red , |
Daylight Picture
OLMIITE (POLDERVAARTITE), N'Chwaning Mine, Kuruman,
Northern Cape Province, South Africa;
Col. G.Barmarin; Photo: G. Barmarin
Long Waves Picture (365nm)
OLMIITE (POLDERVAARTITE), N'Chwaning Mine, South Africa;
UVLW
Col. G.Barmarin; Photo: G. Barmarin
Short Waves Pictures (254nm)
OLMIITE (POLDERVAARTITE), N'Chwaning Mine, South Africa;
UVSW
Col. G.Barmarin; Photo: G. Barmarin
It seems that fluorescing POLDERVAARTITE from N'Chwaning Mines is in fact OLMIITE a Mn2+ dominant analogue of Poldervaartite. (Mindat.org)
Most Common Activator: Mn2+
No spectrum for the moment(*)Data are not exhaustive and are limited to the most important localities for fluorescence
http://www.mindat.org/show.php?name=Olmiite
http://webmineral.com/data/Olmiite.shtml
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