Peso Specifico delle Gemme — Tabella di Riferimento
Densità di 130 specie di gemme: valori minimo, tipico e massimo del peso specifico, in ordine decrescente. Il peso specifico si misura con la pesata idrostatica — pesare la pietra in aria e poi sospesa in acqua — e funziona su materiale grezzo non lucidato, ma non su pietre incastonate.
I nomi delle gemme compaiono nella forma commerciale internazionale (inglese) e rimandano alla scheda dettagliata di ogni specie (in inglese).
Inserisci la tua misurazione in GemID — il motore restringe automaticamente i candidati. L'app è disponibile in italiano.
Prova GemID Gratis →| Gemma | PS Min | PS Tipico | PS Max | Durezza | Sistema Cristallino |
|---|---|---|---|---|---|
| Cinnabar | 8.00 | 8.10 | 8.20 | 2–2.5 | Trigonal |
| Cassiterite | 6.80 | 6.95 | 7.10 | 6–7 | Tetragonal |
| Cuprite | 5.85 | 6.14 | 6.15 | 3.5–4 | Cubic |
| Cubic Zirconia | 5.60 | 5.80 | 6.00 | 8–8.5 | Cubic |
| Hematite | 4.95 | 5.28 | 5.30 | 5.5–6.5 | Trigonal |
| Zircon | 4.60 | 4.69 | 4.80 | 7.5 | Tetragonal |
| YAG | 4.50 | 4.55 | 4.60 | 8–8.5 | Cubic |
| Spessartite Garnet | 4.12 | 4.15 | 4.18 | 7–7.5 | Cubic |
| Sphalerite | 3.90 | 4.09 | 4.10 | 3.5–4 | Cubic |
| Almandine Garnet | 3.93 | 4.05 | 4.30 | 7–7.5 | Cubic |
| Star Garnet | 3.93 | 4.05 | 4.30 | 7–7.5 | Cubic |
| Color-Change Sapphire | 3.99 | 4.00 | 4.01 | 9 | Trigonal |
| Low-Type Zircon | 3.90 | 4.00 | 4.10 | 6–7.5 | Tetragonal |
| Padparadscha Sapphire | 3.95 | 4.00 | 4.03 | 9 | Trigonal |
| Pink Sapphire | 3.98 | 4.00 | 4.01 | 9 | Trigonal |
| Ruby | 3.97 | 4.00 | 4.05 | 9 | Trigonal |
| Sapphire | 3.95 | 4.00 | 4.03 | 9 | Trigonal |
| Star Ruby | 3.97 | 4.00 | 4.05 | 9 | Trigonal |
| Star Sapphire | 3.95 | 4.00 | 4.03 | 9 | Trigonal |
| Synthetic Color-Change Corundum | 3.97 | 4.00 | 4.05 | 9 | Trigonal |
| White Sapphire | 3.99 | 4.00 | 4.01 | 9 | Trigonal |
| Yellow Sapphire | 3.99 | 4.00 | 4.01 | 9 | Trigonal |
| Demantoid Garnet | 3.82 | 3.84 | 3.88 | 6.5–7 | Cubic |
| Rhodolite Garnet | 3.74 | 3.84 | 3.94 | 7–7.5 | Cubic |
| Malachite | 3.60 | 3.80 | 4.05 | 3.5–4 | Monoclinic |
| Pyrope Garnet | 3.62 | 3.78 | 3.87 | 7–7.5 | Cubic |
| Malaya / Umbalite Garnet | 3.65 | 3.75 | 3.87 | 7–7.5 | Cubic |
| Alexandrite | 3.70 | 3.73 | 3.78 | 8.5 | Orthorhombic |
| Cat's Eye Chrysoberyl | 3.70 | 3.73 | 3.78 | 8.5 | Orthorhombic |
| Chrysoberyl | 3.70 | 3.73 | 3.78 | 8.5 | Orthorhombic |
| Color-Change Garnet | 3.65 | 3.72 | 3.80 | 7–7.5 | Cubic |
| Kyanite | 3.53 | 3.68 | 3.68 | 4.5–7 | Triclinic |
| Benitoite | 3.64 | 3.66 | 3.68 | 6–6.5 | Hexagonal |
| Synthetic Spinel | 3.61 | 3.63 | 3.66 | 8 | Cubic |
| Grossular Garnet | 3.57 | 3.61 | 3.73 | 6.5–7.5 | Cubic |
| Hessonite Garnet | 3.59 | 3.61 | 3.65 | 7–7.5 | Cubic |
| Taaffeite | 3.59 | 3.61 | 3.63 | 8–8.5 | Hexagonal |
| Tsavorite Garnet | 3.59 | 3.61 | 3.65 | 7–7.5 | Cubic |
| Black Spinel | 3.58 | 3.60 | 3.61 | 8 | Cubic |
| Rhodonite | 3.57 | 3.60 | 3.76 | 5.5–6.5 | Triclinic |
| Spinel | 3.57 | 3.60 | 3.63 | 7.5–8 | Cubic |
| Sphene | 3.45 | 3.53 | 3.55 | 5–5.5 | Monoclinic |
| Topaz | 3.49 | 3.53 | 3.57 | 8 | Orthorhombic |
| Blue Diamond | 3.50 | 3.52 | 3.53 | 10 | Cubic |
| Brown Diamond | 3.51 | 3.52 | 3.53 | 10 | Cubic |
| Diamond | 3.50 | 3.52 | 3.53 | 10 | Cubic |
| Pink Diamond | 3.51 | 3.52 | 3.53 | 10 | Cubic |
| Yellow Diamond | 3.51 | 3.52 | 3.53 | 10 | Cubic |
| Rhodochrosite | 3.40 | 3.50 | 3.70 | 3.5–4 | Trigonal |
| Sinhalite | 3.47 | 3.48 | 3.50 | 6.5–7 | Orthorhombic |
| Diaspore | 3.30 | 3.35 | 3.39 | 6.5–7 | Orthorhombic |
| Tanzanite | 3.35 | 3.35 | 3.38 | 6–7 | Orthorhombic |
| Jadeite | 3.24 | 3.34 | 3.43 | 6.5–7 | Aggregate |
| Peridot | 3.27 | 3.34 | 3.48 | 6.5–7 | Orthorhombic |
| Kornerupine | 3.27 | 3.33 | 3.45 | 6.5 | Orthorhombic |
| Chrome Diopside | 3.22 | 3.30 | 3.38 | 5.5–6.5 | Monoclinic |
| Star Diopside | 3.27 | 3.29 | 3.36 | 5–6 | Monoclinic |
| Enstatite | 3.20 | 3.27 | 3.30 | 5–5.5 | Orthorhombic |
| Moissanite | 3.20 | 3.22 | 3.22 | 9.3 | Hexagonal |
| Clinohumite | 3.13 | 3.21 | 3.35 | 6 | Monoclinic |
| Apatite | 3.17 | 3.20 | 3.23 | 5 | Hexagonal |
| Thulite | 3.10 | 3.20 | 3.38 | 6–7 | Orthorhombic |
| Fluorite | 3.17 | 3.18 | 3.19 | 4 | Cubic |
| Hiddenite | 3.15 | 3.18 | 3.21 | 6.5–7 | Monoclinic |
| Kunzite | 3.15 | 3.18 | 3.21 | 6.5–7 | Monoclinic |
| Andalusite | 3.13 | 3.17 | 3.21 | 7–7.5 | Orthorhombic |
| Chrome Tourmaline | 3.00 | 3.10 | 3.20 | 7–7.5 | Trigonal |
| Green Tourmaline | 3.00 | 3.06 | 3.10 | 7–7.5 | Trigonal |
| Indicolite | 3.02 | 3.06 | 3.10 | 7–7.5 | Trigonal |
| Paraiba Tourmaline | 3.02 | 3.06 | 3.10 | 7–7.5 | Trigonal |
| Rubellite | 3.02 | 3.06 | 3.10 | 7–7.5 | Trigonal |
| Tourmaline | 3.01 | 3.06 | 3.26 | 7–7.5 | Trigonal |
| Watermelon Tourmaline | 3.00 | 3.06 | 3.10 | 7–7.5 | Trigonal |
| Danburite | 2.97 | 3.00 | 3.02 | 7–7.5 | Orthorhombic |
| Phenakite | 2.95 | 2.96 | 2.97 | 7.5–8 | Trigonal |
| Grandidierite | 2.85 | 2.95 | 2.98 | 7–7.5 | Orthorhombic |
| Nephrite | 2.90 | 2.95 | 3.03 | 6–6.5 | Aggregate |
| Prehnite | 2.82 | 2.88 | 2.94 | 6–6.5 | Orthorhombic |
| Morganite | 2.71 | 2.82 | 2.85 | 7.5–8 | Hexagonal |
| Larimar | 2.74 | 2.80 | 2.90 | 4.5–5 | Triclinic |
| Sugilite | 2.74 | 2.76 | 2.80 | 5.5–6.5 | Hexagonal |
| Turquoise | 2.60 | 2.76 | 2.90 | 5–6 | Triclinic |
| Lapis Lazuli | 2.70 | 2.75 | 2.90 | 5–6 | Aggregate |
| Pearl | 2.60 | 2.74 | 2.85 | 2.5–4.5 | Aggregate |
| Aquamarine | 2.68 | 2.72 | 2.78 | 7.5–8 | Hexagonal |
| Emerald | 2.67 | 2.72 | 2.78 | 7.5–8 | Hexagonal |
| Goshenite | 2.68 | 2.72 | 2.80 | 7.5–8 | Hexagonal |
| Heliodor | 2.68 | 2.72 | 2.74 | 7.5–8 | Hexagonal |
| Labradorite | 2.68 | 2.70 | 2.75 | 6–6.5 | Triclinic |
| Rainbow Moonstone | 2.68 | 2.70 | 2.72 | 6–6.5 | Triclinic |
| Coral | 2.60 | 2.68 | 2.70 | 3–4 | Aggregate |
| Red Beryl | 2.66 | 2.68 | 2.70 | 7.5–8 | Hexagonal |
| Amethyst | 2.63 | 2.65 | 2.65 | 7 | Trigonal |
| Ametrine | 2.63 | 2.65 | 2.67 | 7 | Trigonal |
| Aventurine | 2.64 | 2.65 | 2.69 | 7 | Trigonal |
| Citrine | 2.63 | 2.65 | 2.65 | 7 | Trigonal |
| Hawk's Eye | 2.64 | 2.65 | 2.71 | 7 | Trigonal |
| Prasiolite | 2.63 | 2.65 | 2.67 | 7 | Trigonal |
| Rock Crystal | 2.63 | 2.65 | 2.65 | 7 | Trigonal |
| Rose Quartz | 2.63 | 2.65 | 2.65 | 7 | Trigonal |
| Smoky Quartz | 2.63 | 2.65 | 2.65 | 7 | Trigonal |
| Tiger's Eye | 2.64 | 2.65 | 2.71 | 7 | Trigonal |
| Scapolite | 2.50 | 2.63 | 2.74 | 6–6.5 | Tetragonal |
| Sunstone | 2.62 | 2.63 | 2.65 | 6–6.5 | Triclinic |
| Agate | 2.58 | 2.61 | 2.64 | 6.5–7 | Trigonal |
| Bloodstone | 2.58 | 2.61 | 2.64 | 6.5–7 | Trigonal |
| Carnelian | 2.58 | 2.61 | 2.64 | 6.5–7 | Trigonal |
| Chalcedony | 2.58 | 2.61 | 2.64 | 6.5–7 | Trigonal |
| Chrysoprase | 2.58 | 2.61 | 2.64 | 6.5–7 | Trigonal |
| Onyx | 2.58 | 2.61 | 2.64 | 6.5–7 | Trigonal |
| Pietersite | 2.58 | 2.61 | 2.64 | 6.5–7 | Aggregate |
| Charoite | 2.54 | 2.60 | 2.68 | 5–6 | Monoclinic |
| Iolite | 2.57 | 2.59 | 2.66 | 7–7.5 | Orthorhombic |
| Moonstone | 2.56 | 2.58 | 2.59 | 6–6.5 | Monoclinic |
| Amazonite | 2.54 | 2.56 | 2.58 | 6–6.5 | Triclinic |
| Serpentine | 2.44 | 2.55 | 2.62 | 3–4 | Monoclinic |
| Howlite | 2.45 | 2.53 | 2.58 | 3.5 | Monoclinic |
| Variscite | 2.40 | 2.52 | 2.60 | 3.5–4.5 | Orthorhombic |
| Hauyne | 2.44 | 2.47 | 2.50 | 5.5–6 | Cubic |
| Obsidian | 2.30 | 2.40 | 2.60 | 5–5.5 | Amorphous |
| Moldavite | 2.32 | 2.35 | 2.38 | 5.5 | Amorphous |
| Hackmanite | 2.14 | 2.27 | 2.40 | 5.5–6 | Cubic |
| Sodalite | 2.14 | 2.27 | 2.40 | 5.5–6 | Cubic |
| Chrysocolla | 2.00 | 2.20 | 2.40 | 2.5–7 | Amorphous |
| Opal | 1.98 | 2.15 | 2.25 | 5.5–6.5 | Amorphous |
| Black Opal | 2.09 | 2.10 | 2.16 | 5.5–6.5 | Amorphous |
| Fire Opal | 1.98 | 2.00 | 2.20 | 5.5–6.5 | Amorphous |
| Ivory | 1.70 | 1.85 | 1.98 | 2.5–3 | Aggregate |
| Jet | 1.10 | 1.32 | 1.40 | 2.5–4 | Amorphous |
| Amber | 1.05 | 1.08 | 1.09 | 2–2.5 | Amorphous |
Qual è il peso specifico del diamante?
Il peso specifico del diamante è 3.50–3.53. Le imitazioni danno letture diverse — la zirconia cubica è molto più densa (5.60–6.00), per questo la pesata idrostatica le separa rapidamente.
Quale gemma ha il peso specifico più alto?
Tra le 130 gemme di questo riferimento, Cinnabar è la più densa (8.00–8.20). La tabella completa ordina tutte le specie in ordine decrescente.
Come si misura il peso specifico?
Con la pesata idrostatica: pesare la pietra in aria, poi sospesa in acqua — il rapporto dà il peso specifico. Funziona su pietre sciolte, grezze o irregolari, ma non su pietre incastonate: il metallo rende la misura priva di significato.
Vedi anche: Reference Database (EN) · Guide (EN)