An unnamed Ca-Fe3+-arsenate visually indistinguishable from
arseniosiderite. Originally described by Walenta (1998) who later suggested a close relationship to
wallkilldellite-Fe (Walenta, 2006).
The X-ray powder diffraction pattern is very similar to that of 'dehydrated yukonite' (cf. Ross & Post, 1997). See also
yukonite.
Mechanical mixtures (intergrowths) of this mineral and arseniosiderite are known (U. Kolitsch, unpubl. data).
Classification of Unnamed (Arseniosiderite-related mineral) |
| mindat.org URL: | http://www.mindat.org/min-31363.html
Please feel free to link to this page. |
|---|
| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 11.76 | | (10) | | 5.68 | | (7) | | 3.28 | | (6) | | 2.96 | | (0.5) | | 2.77 | | (5) | | 2.56 | | (2) |
|
|---|
| Comments: | Additional line at 2.25 (0.5b) observed for sample from Rotenbach locality. |
|---|
Optical Data of Unnamed (Arseniosiderite-related mineral) |
| Type: | Uniaxial (-) |
|---|
| RI values: | nω = 1.880 nε = 1.730 |
|---|
| Maximum Birefringence: | δ = 0.150
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
|---|
| Surface Relief: | Very High |
|---|
| Pleochroism: | Strong |
|---|
| Comments: | X(E) ~colourless
Z(O) brown |
|---|
Chemical Properties of Unnamed (Arseniosiderite-related mineral) |
| Formula: | |
|---|
| Essential elements: | Ca |
|---|
| All elements listed in formula: | As, Ca, Fe, H, O |
|---|
Other Information |
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
|---|
References for Unnamed (Arseniosiderite-related mineral) |
| Reference List: | Ross, D. R. & Post, J. E. (1997): New data on yukonite. Powder Diffraction 12 (2), 113-116.
Walenta, K. (1998): Ein neues arseniosideritähnliches Mineral aus dem Schwarzwald. Der Erzgräber 12, 41-48. (in German)
Walenta, K. (2006): Über das neue arseniosideritähnliche Mineral aus dem Schwarzwald und seine Beziehungen zum Wallkilldellit-Fe. Erzgräber 20, 15-17. (in German) |
|---|
Internet Links for Unnamed (Arseniosiderite-related mineral) |
| Search Engines: |
Look for Unnamed (Arseniosiderite-related mineral) on Google
Look for Unnamed (Arseniosiderite-related mineral) images on Google |
|---|
| Mineral Dealers: | Wilensky Fine MineralsSpiriferMinerals.com - high quality specimensDAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.Rare and Unusual minerals at Mineralogical Research Companyrare and unusual minerals mainly crystallizedFind Unnamed (Arseniosiderite-related mineral) on www.crystalclassics.co.ukTop quality minerals from Kristalle of CaliforniaLapis Mineral MagazinBuy Minerals and Crystals from Crystalarium.comBuy RARE Minerals from Rocks of AfricaSearch for - Unnamed (Arseniosiderite-related mineral) - on e-Rocks Mineral Sales & AuctionsFabre Minerals - search for Unnamed (Arseniosiderite-related mineral) specimens |
|---|
| Jobs: | Mining & Geology Jobs |
|---|
Page Sponsor |
| Sponsorship: | This page is currently not sponsored. Click here to sponsor this page. |
|---|
Localities for Unnamed (Arseniosiderite-related mineral) |
