-
GEMS
-
FACETED GEMS
- GARNET RHODOLITE
- AMETHYST
- AXINITE
- BITOWNITA
- CLINOHUMITE
- SMOKED QUARTZ
- QUARTZ TOURMALINE
- ESCAPOLITA
- sphene
- GARNET SPESSARTITE
- SPINEL
- IOLITE
- KUNZITE
- KYANITE
- LABRADORITE
- INCA STONE
- GARNET DEMANTOID
- HACKMANITE
- SAPPHIRE
- GARNET
- SPHALERITE
- PEZZOTAITE
- ANDALUCITE
- PERIDOT
- AMETRINE
- SILLIMANITE
- GARNET TSAVORITE
- DIASPORE
- RUBY
- TOURMALINE
- GRANDIDIERITE
- OPAL
- QUARTZ ROSE
- ANDESINE
- HELIODOR
- AQUAMARINE
- RUBELITE
- MICROCLINE
- HESSONITE GARNET
- ZIRCON
- APATITE
- GARNET IMPERIAL
- RODHONITE
- FLUORITE
- TRIPLITE
- MORGANITE
- MALAYA GARNET
- GARNET COLOR CHANGE
- VESUVIANITE
- CASITERITE
- EPIDOTE
- PARISITE
- RUTILE
- PERICLINE
- AERIGINE
- MONAZITE
- ZOISITAE
- CITRINE QUARTZ
- PREHNITE
- ORTHOCLASE
- EMERALD
- THULITE
- CASSITERITE
- APOPHYLLITE
- SCHEELITE
- BERYLLONITE
- AMBER
- RUTILATED QUARTZ
- QUARTZ
- GOSHENITA
-
CABOCHONS
- AERINITE
- STAR GARNET
- JADEITE
- OPAL
- CINTA STONE
- INCA STONE
- MOONSTONE
- PIETERSITE
- PIROXMANGITE
- PREHNITE
- RODOCROSITE
- SERPENTINE
- SODALITE
- TEFROITE
- TURQUOISE
- CHAROITE
- CHALCEDONY
- RODONITE
- SPHALERITE
- OBSIDIAN
- PERIDOT
- TIGER EYE
- SERAFINITA
- BUMBLE BEE
- ESTROMATOLITO
- MALACHITE
- GRANDIDIERITE
- GARNET TSAVORITE
- GARNET HESONITE
- ROSE QUARTZ
- INCLUDED QUARTZ
- AMETHYST
- AQUAMARINE
- ALBITE
- GARNET SPESSARTITE
- EMERALD
- MALI GARNET
- KYANITE
- SUNSTONE
- CRISOPRASE
- UNAKITE
- HACKMANITE
- SAPPHIRE
- AMBER
- TOURMALINE
- VARISCITE
- IOLITE
- Chrysoberyl
- QUIASTOLITE
- ALEXANDRITE
- COLOR CHANGE
- CAT EYE
- APATITE
- RUBY
- AMAZONITE
- JASPER
- LARIMAR
- LAPISLAZULI
- GARNET
- PYROMORPHITE
- DEMANTOIDE GARNET
- THULITE
- CRYSOCOLLA
- FLUORITE
- CARVED MINERALS
-
FACETED GEMS
- JEWELLS
-
MINERALS
- AERINITE
- AQUAMARINE
- AMETRINE
- ANGELITE
- AZURITE
- CHALCEDONY
- CITRINE QUARTZ
- DRAVITE TOURMALINE
- ESTAUROLITE
- TSAVORITE GARNET
- SPHALERITE
- EMERALD
- RHODOLITE GARNET
- MALI GARNET
- GARNET COLOUR CHANGE
- DEMANTOIDE GARNET
- HESSONITE GARNET
- SPESSARTITE GARNET
- ALMANDINE GARNET
- ANDRADITE GARNET
- GRANDIDIERITE
- MALACHITE
- MORGANITE
- OBSIDIANE
- OPAL
- ORTHOCLASE
- PAISINE
- PERIDOT
- PIRITE
- POLDERVAARTITE
- PREHNITE
- BITERMINATED QUARTZ
- CHIASTOLITE
- RUBY
- RHODOCHROSITE
- TOPAZ
- VARISCITE
- ZOISITE AND RUBY
- METEORITES
- FOSSIL
- LOTS
- BLOG
Prehnita 14.20ct
€71.00
| Detalls del producte | |
|---|---|
| GEMMA | : Prehnita |
| PES TOTAL | : 14.20ct |
| MIDES: (LxWxH) | : 16.2x 13.6x 11mm |
| FORMA | : Oval |
| COLOR | : Verd |
| DURESA | : 6-6.5 |
| ORIGEN | : Africa |
| TRACTAMENT | : Sense tractament |
Prehnita
Porta el nom en honor a Hendrik von Prehn, governador del Cap de Bona Esperança (Sud-àfrica) el 1774 qui va descobrir aquest mineral. El nom va ser posat pel famós geòleg alemany Gottlob Werner el 1788.
Sol apareixer en un hàbit botrioïdal - forma externa globular i que s'assembla a un brot de raïm (on deriva el nom des del grec).
Ca2Al(AlSi3O10)(OH)2
F225
1 Item
| Detalls del producte | |
|---|---|
| GEMMA | : Prehnita |
| PES TOTAL | : 14.20ct |
| MIDES: (LxWxH) | : 16.2x 13.6x 11mm |
| FORMA | : Oval |
| COLOR | : Verd |
| DURESA | : 6-6.5 |
| ORIGEN | : Africa |
| TRACTAMENT | : Sense tractament |