Scolecite and Apophyllite
| ID | 10 | |
|---|---|---|
| Mineral |
Scolecite
Apophyllite |
|
| Location | Nashik District - Maharashtra - India | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Scolecite information at mindat.org View Apophyllite information at mindat.org |
|
Mindat data
| ID | 3594 |
|---|---|
| Long ID | 1:1:3594:7 |
| Formula |
Ca(Si3Al2)O10 · 3H2O
|
| IMA Status |
0 1 |
| Other Occurrences | Cavities in basalts; Alpine clefts. |
| Discovery Year | 1813 |
| Diapheny | Transparent,Translucent |
| Cleavage |
Perfect on the {110} and |
| Tenacity | brittle |
| Colour | colorless, white , pink, salmon, red, green |
| Hardness (min) | 5.0 |
| Hardness (max) | 5.5 |
| About the name | From the Greek, σκώληξ (skolex) = 'worm' in reference to the mineral's reaction to the blowpipe flame. |
| Streak | white |
| Crystal System | Monoclinic |
| Cleavage Type | Perfect |
| Fracture type | Irregular/Uneven |
| Morphology | Crystals are slender prismatic |
| Twinning | On {100}, twin axis [001], contact or penetration twins |
| UV | May be yellow to brown in LW and SW. |
| Comment Luster | Silky when fibrous |
| shortcode_ima | Slc |
| Group | Natrolite Subgroup |
| ID | 1989 |
|---|---|
| Long ID | 1:1:1989:3 |
| Formula |
KCa4Si8O20(OH,F) · 8H2O
|
| IMA Status |
0 |
| Discovery Year | 1978 |
| Diapheny | Transparent,Translucent,Opaque |
| Cleavage | {001} |
| Tenacity | brittle |
| Colour | Colorless to white; may be pink, light green, or light yellow. |
| Hardness (min) | 4.0 |
| Hardness (max) | 5.0 |
| About the name | Apophyllite was named in 1806 by Rene Just Haüy from the Greek for "away from" (ἀπό, apo) and "leaf" (φύλλον, phyllos), in allusion to the way it exfoliates upon heating. Chemical variants were recognized by Pete J. Dunn, Roland C. Rouse, and Julie A. Norberg in 1978. |
| Streak | white |
| Crystal System | Tetragonal |
| Cleavage Type | Perfect |
| Fracture type | Irregular/Uneven |
| Comment Luster | Vitreous on {100} and pearly on {001} |
| shortcode_ima | Hapo-K |
| Group | Apophyllite Group |
Details
Price: € 10
Dimensions: Not registered
Weight: Not registered
Visibile in overview:
Notes:
| Symbol | Element | |
|---|---|---|
| Al | Aluminium | |
| Ca | Calcium | |
| F | Fluorine |
|
| H | Hydrogen | |
| K | Potassium | |
| O | Oxygen | |
| Si | Silicium |
