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In general, chalcedony forms by filling cavities in rocks. Such cavities may form as gas bubbles in a lava flow; irregular vugs or open space within a solid rock; or horizontal cavities along bedding planes, that result from solution of the preexisting rock, faulting or movement within the rock, or other geologic processesChalcedony is best described as a dense, semitransparent or translucent variety of SiO2 consisting of a cryptocrystalline intergrowth of mostly quartz and lesser amounts of moganite, another form of SiO2 that has a different crystal form. Chalcedony breaks with a conchoidal fracture and commonly displays a waxy, vitreous, or silky luster. Minute changes in amount of impurities in the silica-rich solutions can result in faint color banding or layering in the Chalcedony.See images above for random examples.This bag weighs 8 oz. and will contain an average of 9-15 pieces. Great refill for any beginner-novice tumblers, i.e., NSI, National Geographic, Dr. Cool, Smithsonian, Elenco & Pro Models Lortone, Chicago & Others. NOTE* This Bag DOES Not contain Grits, Findings, jewelry parts,or adhesives that may have been included with the original tumbler accessories. WARNING-Choking Hazard! Use Tumbling instructions from the tumbler manufacturer.
Features
1) White chalcedony rough from new mexico . Great refill for the beginner hobbyist, or advanced tumbler.
2) Your stones will be typical of what is shown. Pieces shown are actual random examples of this parcel & gem's colorization. Long time favorite of hobbyists, cutters-getting scarcer this nice!
3) Takes an exceptional polish, each stone ranges roughly from 1/2" dia to 1 1/2" dia.
4) Each bag averages 9-15 chunky, pieces-many showing typical botryoidal texture on upper surfaces! You will be very happy!
5) Displays a waxy, vitreous, or silky luster. Mostly white in color but browns,reds and grays present.
Specification
Binding : Toy
Brand : Rock Hound's 1st Choice New Mexico White Chalcedony
EAN : 4903563173913
Label : Rockhound's 1st Choice
Manufacturer : Rockhound's 1st Choice
PackageDimensions : L:6.00 X W:4.00 X H:1.00
ProductGroup : Toy
ProductTypeName : TOYS_AND_GAMES
Publisher : Rockhound's 1st Choice
Studio : Rockhound's 1st Choice
Title : Rock Tumbler Gem Refill Kit New Mexico White Chalcedony Rough 8 oz
In general, chalcedony forms by filling cavities in rocks. Such cavities may form as gas bubbles in a lava flow; irregular vugs or open space within a solid rock; or horizontal cavities along bedding planes, that result from solution of the preexisting rock, faulting or movement within the rock, or other geologic processesChalcedony is best described as a dense, semitransparent or translucent variety of SiO2 consisting of a cryptocrystalline intergrowth of mostly quartz and lesser amounts of moganite, another form of SiO2 that has a different crystal form. Chalcedony breaks with a conchoidal fracture and commonly displays a waxy, vitreous, or silky luster. Minute changes in amount of impurities in the silica-rich solutions can result in faint color banding or layering in the Chalcedony.See images above for random examples.This bag weighs 8 oz. and will contain an average of 9-15 pieces. Great refill for any beginner-novice tumblers, i.e., NSI, National Geographic, Dr. Cool, Smithsonian, Elenco & Pro Models Lortone, Chicago & Others. NOTE* This Bag DOES Not contain Grits, Findings, jewelry parts,or adhesives that may have been included with the original tumbler accessories. WARNING-Choking Hazard! Use Tumbling instructions from the tumbler manufacturer.
Features
1) White chalcedony rough from new mexico . Great refill for the beginner hobbyist, or advanced tumbler.
2) Your stones will be typical of what is shown. Pieces shown are actual random examples of this parcel & gem's colorization. Long time favorite of hobbyists, cutters-getting scarcer this nice!
3) Takes an exceptional polish, each stone ranges roughly from 1/2" dia to 1 1/2" dia.
4) Each bag averages 9-15 chunky, pieces-many showing typical botryoidal texture on upper surfaces! You will be very happy!
5) Displays a waxy, vitreous, or silky luster. Mostly white in color but browns,reds and grays present.
Specification
Binding : Toy
Brand : Rock Hound's 1st Choice New Mexico White Chalcedony
EAN : 4903563173913
Label : Rockhound's 1st Choice
Manufacturer : Rockhound's 1st Choice
PackageDimensions : L:6.00 X W:4.00 X H:1.00
ProductGroup : Toy
ProductTypeName : TOYS_AND_GAMES
Publisher : Rockhound's 1st Choice
Studio : Rockhound's 1st Choice
Title : Rock Tumbler Gem Refill Kit New Mexico White Chalcedony Rough 8 oz
