The name sunstone refers to the gems appearance rather than to its chemical makeup. Orthoclase Microcline Labradorite Zicon Hyacinth Cyanite Blue Green Spinel Ruby Grahnite Zoisite Thulite Olivine Peridot Epidote Iolite Serpentine Malachite Titanite Paper read before the Southern Appalachian Mineral Society Asheville June 251932.
Oligoclase sunstone is more common than orthoclase sunstone.
Orthoclase sunstone. Some of the best orthoclase sunstone comes from the Harts Range area in Australia. Oregon sunstone hosts microscopic copper inclusions Tanzanian ones have rather large hematite. Sunstone is a member of the feldspar group.
Therefore orthoclase is sometimes also called K-spar. Not all feldspars that bear the name sunstone are from the same side of the feldspar familyboth the orthoclase and the plagioclase species boast a sunstone feldspar variety. The name orthoclase is a Greek word meaning straight fracture which refers to the.
A typical orthoclase is a solid solution of KAlSi 3 O 8 and. Other feldspar group gems include moonstone non-phenomenal orthoclase phenomenal and non-phenomenal labradorite and amazonite. Both the orthoclase and the plagioclase feldspar species boast a sunstone variety.
If aventurescence is present gemologists call it aventurine feldspar. Orthoclase is a rare gemstone that belongs to the feldspar group which also includes moonstone amazonite spectrolite and labradorite. Orthoclase is a member of the Potassium Feldspars of the Feldspar Group of minerals that also includes Albite Amazonite Andesine Anorthite Bytownite Hyalophane Labradorite Moonstone Oligoclase Orthoclase Sanidine and Sunstone.
Check out our orthoclase sunstone selection for the very best in unique or custom handmade pieces from our shops. Feldspar is family of gemstones that can encompass Albite Adularia Amazonite Andesine Bytownite Gaspeite Labradorite Moonstone Orthoclase and Sunstone. The sunstone is linked to good luck and good fortune.
Feldspar is associated with accepting change in life. The stone on the right is a beautiful orange 7×5 mm oval faceted stone weighing 101 carats. Gunter and Charles R.
Knowles 1991 Sunstone Labradorite from the Ponderosa Mine Oregon. Essentially any form of aventurescent feldspar can be marketed as aventurine feldspar. The stone on the left is a 7 mm round cabochon with abundant copper platelets weighing 229 carats.
There are many sunstone varieties. Feldspar with ilmenite and hematite inclusions. To date several members of the feldspar family have been identified that show such glittering inclusions.
This material contains hematite and ilmenite platelets and shows rainbow interference colors. The aventurescence effect is caused by numerous inclusions reflecting light whose the size greatly varies depending on sunstone typeorigin. Strongly glittering orange-brown oligoclase is known as Sunstone or Aventurine Feldspar.
Some of those are members of the feldspar groupThe feldspar groups wide variety of unusual gems includes moonstone non. Orthoclase is a member of the Potassium Feldspars of the Feldspar Group of minerals that also includes Albite Amazonite Andesine Anorthite Bytownite Hyalophane Labradorite Moonstone Oligoclase Orthoclase Sanidine and Sunstone. Plush Dust Devil Mine.
Orthoclase was named orthose in 1801 by Rene Just Haüy from the Greek word orthos meaning right in allusion to the cleavage angle. Sunstone is the official state gemstone for Oregon USA. Sunstone can be varieties of plagioclase oligoclase sunstone feldspar or potassium feldspar orthoclase sunstone.
There is a tremendous curiosity about health benefits of Orthoclase and Sunstone in the field of crystal healing. Oregon Sunstone as a faceted stone and a cabochon. Gunter and Charles R.
Gems And Gemology Winter 220-233. Orthoclase and Sunstone optical properties play a significant role while distinguishing these gemstones from each other. The sunstone is an aventurescent feldspar usually an oligoclase labradorite plagioclase.
The gemstone can help you cope with difficulties in life and can promote healing of your mind and spirit providing soothing and rejuvenating energy. Very hard to capture all the amazing colours. Amongst others andesine labradorite and bytownite are the most important ones.
Sunstone from Oregon is gaining attention as a natural and untreated product of the United States. Other Language Names for SunstoneHide Simplified Chinese. The aventurine feldspar from India.
In the trade this material is called rainbow lattice sunstone. SUNSTONESunstones phenomenal varieties show a distinct and lively glitter called aventurescenceSunstone DescriptionGem connoisseurs and innovative jewelry designers often seek the subtle beauty of lesser-knownbut still intriguing and uniquegemstones. Orthoclase gemstones are typically champagne yellow golden yellow or greenish though they can be other colors.
Knowles 1991 Sunstone Labradorite. Orthoclase was named for those in 1801 by Rene Just Haüy from the Greek word orthos meaning right in allusion to the cleavage angle. Hence two kinds of sunstone are distinguished as oligoclase sunstone and orthoclase sunstone Sunstones are believed to have metaphysical properties for crystal healing and gem therapy.
JOURNAL MINERALOGICAL Quartz Rock Crystal Amethyst Citrine Smoky Rose Quartz Prase and Chrysoprase Rutilated Agate Chalcedony. The feldspar which usually displays the aventurine appearance is oligoclase though the effect is sometimes seen in orthoclase. CaNa-feldspar and more rarely an orthoclase k-feldspar.
Orthoclase sunstone is one of the aventurescent feldspar varieties. Orthoclase crystal as its name already indicates is a member of the orthoclase feldspars The most important feature of this class is that they contain K and Na in contrast to Ca and Na contained in the plagioclase. The other related crystals from this family are the attractive labradorite moonstone sunstone and amazonite.
The name was changed to. Sunstones are feldspars which show a distinct glittering due to flaky highly reflective inclusions. Rainbow Lattice Sunstone Harts Range Northern Territory.