Ferrisicklerite
| ID | 123 | |
|---|---|---|
| Mineral | Ferrisicklerite | |
| Location | Kivu - Democratic Republic of the Congo | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Ferrisicklerite information at mindat.org View information at mindat.org |
|
Mindat data
| ID | 1499 |
|---|---|
| Long ID | 1:1:1499:7 |
| Formula |
Li1-x(Fe3+,Mn2+)(PO4)
|
| IMA Status |
0 1 |
| Variety of | 4020 |
| Entry type | 2 |
| Description | DISCREDITED (intermediate phases in the triphylite–heterosite solid solution). Occurs only as an alteration product of Triphylite and Lithiophilite, commonly as rims around partly altered masses or crystals of the latter species. Ferrisicklerite ... |
| General Appearance | Alteration rim about triphylite. |
| Occurrence | Late hydrothermal alteration or weathering of triphylite. |
| Discovery Year | 1937 |
| Diapheny | Opaque |
| Cleavage | On {100}, good. |
| Tenacity | brittle |
| Colour | Yellow-brown to dark brown |
| Hardness (min) | 4.0 |
| Hardness (max) | 4.0 |
| About the name | From FERRI- for trivalent iron (ferric iron) and sicklerite in allusion to its composition as the ferric iron end member of the series with sicklerite. |
| Streak | Light yellow-brown, brown, reddish brown |
| Crystal System | Orthorhombic |
| Cleavage Type | Distinct/Good |
| Fracture type | Irregular/Uneven |
| Morphology | Massive as an oxidation of triphylite. |
| UV | Not fluorescent in UV |
| Publication Year | 1937 |
| key_elements |
0 |
| shortcode_ima | Fsik |
| ID | 4020 |
|---|---|
| Long ID | 1:1:4020:0 |
| Formula |
LiFe2+(PO4)
|
| IMA Status |
0 1 |
| Occurrence | Granite pegmatite. |
| Other Occurrences | Complex zoned granitic pegmatites. |
| Discovery Year | 1834 |
| Diapheny | Translucent |
| Cleavage | On {001} nearly perfect; on {010} good; on {011} poor. |
| Tenacity | brittle |
| Colour | Brown-green, light green-gray, may appear blue-gray; colourless to pale yellow in transmitted light. |
| Hardness (min) | 4.0 |
| Hardness (max) | 4.0 |
| About the name | Named in 1834 by Johann Nepomuk von Fuchs from the Greek τοίς, "tria", for threefold, plus φυλή "phylon", family, because it was thought to contain three cations (Fe, Li, Mn). |
| Streak | Colorless to grayish white. |
| Crystal System | Orthorhombic |
| Cleavage Type | Very Good |
| Fracture type | Irregular/Uneven |
| Morphology | Crystals rare; commonly coarse with uneven surfaces; stout prismatic [100]. Massive, rarely granular. May exist in pods over 1 meter across. Commonly replaced by siderite with accompanying secondary phosphate species. |
| UV | Not fluorescent. |
| Publication Year | 1834 |
| key_elements |
0 |
| shortcode_ima | Trp |
| Group | Triphylite Group |
Details
Price: € 15
Dimensions: Not registered
Weight: Not registered
Visibile in overview:
Notes:
| Symbol | Element | |
|---|---|---|
| Fe | Iron | |
| Li | Lithium | |
| O | Oxygen | |
| P | Phosphorus |
|