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 |
|
