Jewelry Microscope Gem Refractometer High Hardness CZ Test Prism A24.6321
Professional Optical Design,
High Hardness CZ Test Prism,
Clear Shadow Boundaries,
Special Power Supply
| A24.6321 Gem Refractometer | A | B | C |
| Scale Range | 1.35-1.85, Hard CZ Measuring Prism |
| Accuracy | ≤± | 0.003 | 0.002 |
| Working Plate | Aluminum Alloy Matte Surface | Stainless Steel |
| Illumination | Built-In Monochromatic LED Light Source | Brightness Adjustment |
| No | No | Yes |
| Power Supply | AAA Batteries And DC3V (AC100-240V) |
| Refractive Index Oil | One Bottle Of 2ml, RI: 1.785±0.005 |
| Packing | Carton | Metal Storage Box |
| List of Gem Refractive Index | | Name | Refraction | Double Refraction | Birefringence | | Hematite | 2.94 - 3.22 | Yes | 0.28 | | Diamond | 2.417 - 2.419 | None | NA | | Sphalerite | 2.368 - 2.371 | None | NA | | Cassiterite | 1.997 - 2.093 | Yes | 0.096 to 0.098 | | Demantoid Garnet | 1.88 - 1.94 | None | NA | | Melanite | 1.88 - 1.94 | None | NA | | Sphene | 1.843 - 2.11 | Yes | 0.100 to 0.192 | | Zircon | 1.810 - 1.984 | Yes | 0.001 to 0.059 | | Spessartite Garnet | 1.79 - 1.82 | None | NA | | Almandine Garnet | 1.77 - 1.82 | None | NA | | Star Ruby | 1.762 - 1.778 | Yes | 0.008 | | Ruby | 1.762 - 1.778 | Yes | 0.008 | | Star Sapphire | 1.762 - 1.778 | Yes | 0.008 | | Color-change Sapphire | 1.762 - 1.778 | Yes | 0.008 | | Sapphire | 1.762 - 1.778 | Yes | 0.008 | | Alexandrite | 1.746 - 1.763 | Yes | 0.004 to 0.010 | | Chrysoberyl Cat's Eye | 1.746 - 1.763 | Yes | 0.004 to 0.010 | | Chrysoberyl | 1.746 - 1.763 | Yes | 0.007 to 0.011 | | Grossularite Garnet | 1.734 - 1.759 | None | NA | | Tsavorite Garnet | 1.734 - 1.759 | None | NA | | Mali Garnet | 1.734 - 1.759 | None | NA | | Hessonite Garnet | 1.73 - 1.75 | None | NA | | Color-Change Garnet | 1.73 - 1.756 | None | NA | | Star Garnet | 1.72 - 1.756 | None | NA | | Pyrope Garnet | 1.72 - 1.756 | None | NA | | Rhodolite Garnet | 1.72 - 1.76 | None | NA | | Azurite | 1.72 - 1.848 | Yes | 0.108 to 0.110 | | Rhodonite | 1.716 - 1.752 | Yes | 0.010 to 0.014 | | Spinel | 1.712 - 1.762 | None | NA | | Kyanite | 1.71 - 1.734 | Yes | 0.0015 to 0.033 | | Color-Change Diaspore | 1.702 - 1.75 | Yes | 0.048 | | Cat's Eye Diaspore | 1.702 - 1.75 | Yes | 0.048 | | Idocrase | 1.7 - 1.723 | Yes | 0.002 to 0.012 | | Ruby-Zoisite | 1.691 - 1.7 | Yes | 0.009 | | Tanzanite | 1.691 - 1.7 | Yes | 0.009 | | Dumortierite Quartz | 1.678 - 1.689 | Yes | 0.015 to 0.037 | | Tashmarine Diopside | 1.664 - 1.73 | Yes | 0.024 to 0.031 | | Star Diopside | 1.664 - 1.73 | Yes | 0.024 to 0.031 | | Chrome Diopside | 1.664 - 1.73 | Yes | 0.024 to 0.031 | | Kunzite | 1.66 - 1.681 | Yes | 0.014 to 0.016 | | Hiddenite | 1.66 - 1.681 | Yes | 0.014 to 0.016 | | Spodumene | 1.66 - 1.681 | Yes | 0.014 to 0.016 | | Axinite | 1.656 - 1.704 | Yes | 0.010 to 0.012 | | Sillimanite Cat's Eye | 1.655 - 1.684 | Yes | 0.014 to 0.021 | | Malachite | 1.655 - 1.909 | Yes | 0.254 | | Peridot | 1.65 - 1.703 | Yes | 0.036 to 0.038 | | Danburite | 1.63 - 1.636 | Yes | 0.006 to 0.008 | | Clinohumite | 1.629 - 1.674 | Yes | 0.029 - 0.045 | | Apatite | 1.628 - 1.649 | Yes | 0.002 to 0.006 | | Cat's Eye Apatite | 1.628 - 1.649 | Yes | 0.002 to 0.006 | | Andalusite | 1.627 - 1.649 | Yes | 0.007 to 0.013 | | Smithsonite | 1.621 - 1.849 | Yes | 0.228 | | Paraiba Tourmaline | 1.614 - 1.666 | Yes | 0.014 to 0.032 | | Cat's Eye Tourmaline | 1.614 - 1.666 | Yes | 0.014 to 0.032 | | Tourmaline | 1.614 - 1.666 | Yes | 0.014 to 0.032 | | Rubellite Tourmaline | 1.614 - 1.666 | Yes | 0.014 to 0.032 | | Chrome Tourmaline | 1.614 - 1.666 | Yes | 0.014 to 0.032 | | Hemimorphite | 1.614 - 1.636 | Yes | 0.022 | | Prehnite | 1.611 - 1.669 | Yes | 0.0021 to 0.039 | | Turquoise | 1.61 - 1.65 | Yes | 0.04 | | Gaspeite | 1.61 - 1.81 | Yes | 0.22 | | Imperial Topaz | 1.609 - 1.643 | Yes | 0.008 to 0.016 | | Mystic Topaz | 1.609 - 1.643 | Yes | 0.008 to 0.016 | | Rutile Topaz | 1.609 - 1.643 | Yes | 0.008 to 0.016 | | Topaz | 1.609 - 1.643 | Yes | 0.008 to 0.016 | | Azotic Topaz | 1.609 - 1.643 | Yes | 0.008 to 0.016 | | Sugilite | 1.607 - 1.611 | Yes | 0.001 to 0.004 | | Jadeite | 1.6 - 1.627 | Yes | 0.027 | | Nephrite Jade | 1.6 - 1.627 | Yes | 0.027 | | Rhodochrosite | 1.6 - 1.82 | Yes | 0.208 to 0.220 | | Larimar | 1.595 - 1.645 | Yes | 0.038 | | Howlite | 1.586 - 1.605 | Yes | 0.019 | | Seraphinite | 1.576 - 1.599 | Yes | 0,005 to 0.011 | | Emerald | 1.565 - 1.602 | Yes | 0.006 | | Cat's Eye Aquamarine | 1.564 - 1.596 | Yes | 0.004 to 0.005 | | Aquamarine | 1.564 - 1.596 | Yes | 0.004 to 0.005 | | Variscite | 1.563 - 1.594 | Yes | 0.031 | | Goshenite | 1.562 - 1.602 | Yes | 0.004 to 0.010 | | Morganite | 1.562 - 1.602 | Yes | 0.004 to 0.010 | | Beryl | 1.562 - 1.602 | Yes | 0.004 to 0.010 | | Serpentine | 1.56 - 1.571 | Yes | 0.008 to 0.014 | | Labradorite | 1.559 - 1.57 | Yes | 0.008 to 0.010 | | Hambergite | 1.553 - 1.628 | Yes | 0.0072 | | Verdite | 1.552 - 1.576 | None | NA | | Andesine Labradorite | 1.551 - 1.56 | Yes | 0.0008 | | Charoite | 1.55 - 1.561 | Yes | 0.004 to 0.009 | | Mystic Quartz | 1.544 - 1.553 | Yes | 0.009 | | Ametrine | 1.544 - 1.553 | Yes | 0.009 | | Aventurine | 1.544 - 1.553 | Yes | 0.009 | | Rose Quartz | 1.544 - 1.553 | Yes | 0.009 | | Smoky Quartz | 1.544 - 1.553 | Yes | 0.009 | | Pietersite | 1.544 - 1.553 | Yes | 0.009 | | Strawberry Quartz | 1.544 - 1.553 | Yes | 0.009 | | Quartz | 1.544 - 1.553 | Yes | 0.009 | | Citrine | 1.544 - 1.553 | Yes | 0.009 | | Amethyst | 1.544 - 1.553 | Yes | 0.009 | | Rutile Quartz | 1.544 - 1.553 | Yes | 0.009 | | Onyx | 1.544 - 1.553 | Yes | up to 0.004 | | Iolite | 1.542 - 1.578 | Yes | | | Jasper | 1.54 | None | NA | | Peanut Wood | 1.54 | None | NA | | Cat's Eye Scapolite | 1.54 - 1.579 | Yes | 0.006 to 0.037 | | Scapolite | 1.54 - 1.579 | Yes | 0.006 to 0.037 | | Amber | 1.539 - 1.545 | None | NA | | Tiger's Eye | 1.534 - 1.54 | None | NA | | Quartz Cat's Eye | 1.534 - 1.54 | None | NA | | Tiger's Eye Matrix | 1.534 - 1.54 | None | NA | | Bloodstone | 1.53 - 1.54 | Yes | up to 0.004 | | Dendritic Agate | 1.53 - 1.54 | Yes | up to 0.004 | | Agate Geode | 1.53 - 1.54 | Yes | up to 0.004 | | Star Rose Quartz | 1.53 - 1.54 | Yes | 0.009 | | Agate | 1.53 - 1.54 | Yes | up to 0.004 | | Chalcedony | 1.53 - 1.54 | Yes | up to 0.004 | | Fossil Coral | 1.53 - 1.54 | Yes | up to 0.004 | | Fire Agate | 1.53 - 1.54 | Yes | up to 0.004 | | Chrysoprase | 1.53 - 1.54 | Yes | 0.004 to 0.009 | | Carnelian | 1.53 - 1.54 | Yes | up to 0.004 | | Sunstone | 1.525 - 1.548 | Yes | 0.01 | | Star Sunstone | 1.525 - 1.548 | Yes | 0.01 | | Lepidolite | 1.525 - 1.586 | Yes | 0.0290 to 0.0380 | | Amazonite | 1.522 - 1.53 | Yes | 0.008 | | Maw-Sit-Sit | 1.52 - 1.74 | Yes | 0.0150 to 0.020 | | Pearl | 1.52 - 1.69 | Yes | 0.156 | | Ammolite | 1.52 - 1.68 | Yes | 0.155 | | Rainbow Moonstone | 1.518 - 1.526 | Yes | 0.008 | | Star Moonstone | 1.518 - 1.526 | Yes | 0.008 | | Orthoclase | 1.518 - 1.53 | Yes | 0.008 | | Moonstone | 1.518 - 1.526 | Yes | 0.008 | | Lapis Lazuli | 1.5 | None | NA | | Coral | 1.486 - 1.658 | Yes | White and red:
0.160 to 0.172 | | Calcite | 1.486 - 1.658 | Yes | 0.172 | | Sodalite | 1.48 | None | NA | | Hackmanite | 1.48 | None | NA | | Moldavite | 1.48 - 1.54 | None | NA | | Chrysocolla | 1.469 - 1.57 | Yes | 0.023 to 0.040 | | Obsidian | 1.45 - 1.55 | None | NA | | Snowflake Obsidian | 1.45 - 1.55 | None | NA | | Fluorite | 1.434 | None | NA | | Boulder Opal | 1.37 - 1.52 | None | NA | | Opal Doublet | 1.37 - 1.52 | None | NA | | Opal | 1.37 - 1.52 | None | NA | | Fire Opal | 1.37 - 1.52 | None | NA | | Moss Opal | 1.37 - 1.52 | None | NA | |
