In Europe, calamine is the name applied to the carbonate of zinc, here called smithsonite, and sometimes used as a gem despite its softness. It is a mass of small crystals, often harder than ordinary diamond and very valuable for cutting purpose. Unwittingly, the noted London jeweller and gemologist, Edwin Streeter, is partly to blame for this uncertainty, for in his two books he has written contradictory accounts of the diamond's weight. The piece is hung on a strand of Onyx, Turquoise and 18 karat gold beads. During the motions of the balance, except during impulse and drop, the escape wheel teeth press against the outside of the cylinder, making this a frictional escapement, therefore inferior in timekeeping to the lever or chronometer escapement. Jewelry piece that's been cleaved or shared items in google. 27 carat Sea-foam green Aquamarine. By noting the resting place of two particles of known gravity in this column, it is possible to make a fairly accurate deter-mination of the gravity of an unknown substance which floats somewhere between them.
Carat goods – Diamonds parcels in which the stones average one carat each. On Sunday the crossword is hard and with more than over 140 questions for you to solve. How are the various diamond shapes cut? - BAUNAT. Draw tongs – Heavy pliers used for drawing wire through drawplates to reduce the thickness. This coloring is not uncommon, and cerulene is rarely used as a gem or decorative material. Among the other gems was at least one diamond of a rare dark blue colour, the weight of which remains uncertain to this day. One of them the 30-carat 'Brunswick Yellow' diamond, was bought by Tiffany's.
It is time to show our humanity, not the lack thereof. Until then, stay healthy, keep your faith and keep smiling. Diamond Grading Reports – There are many recognized gemological laboratories that can grade your diamond for a fee. Copper bracelet – Bracelet or band made of copper; said to cure or ward off arthritis, bursitis and rheumatism; the wearing of such bracelet became "the latest fashion accessory" in 1969, with Rudolph Nureyev, Pierre Cardin, Lauren Bacall and Vince Lombardi joining "the green wrist mania. FAMOUS DIAMONDS - BRUNSWICK BLUE –. 14ct stone with a 70% depth. Diasterism – Asterism phenomena observed by transmitted light. Development – The action of a spiral spring, mainspring or hairspring as it unwinds.
Coin silver – Silver assaying 900 parts pure silver to every 1000 parts. Below the Aquamarine is a row of Diamonds, totaling. Very unusual and, to date, of no significance to the trade. First used in clocks to indicate the equation of time.
A yummy 12mm natural golden south sea Pearl is set in the middle of a textured top cup of an 18 karat gold ring. The baguette diamond is long and square in shape and is cut with 14 facets. Direct current – Electric current that flows continually in one direction; used for electro-plating, and in battery-driven clocks. Decalcomania – (dee-kall'koe-may"ni-a) Method of decorating clock cases, also other objects, including show windows, by transferring a printed design from wet paper; the design comes off the paper and adheres to the glass or wood. Melting point 1083°C. It is unfair trade practice to use the word pearl to describe a cultured pearl unless it is preceded by the word cultured or cultivated. With such a certificate the jewellery or gemstone can be sold on in good faith. What is the cut of a diamond? It is an18 karat yellow gold textured bowl shaped disk with a sprinkle of. Chinese tourmaline – In reality, a misnomer Carved Chinese tourmaline objects are made mostly of California tourmaline, or more recently of tourmalines from other localities, but not from China. 2; designated the official state gem of Michigan in 1972. Name a piece of jewelry. chlorethane – A non-flammable hydrocarbon used as a degreaser in clock cleaning. Chuck – A work-holding device used in lathes consisting of a steel cylindrical piece with slits radiating from a hold to form spring-jaws to clamp the work.
Carbonate – See CARNON. A cleavage, viewed end on, resembles a single straight line; viewed at right angles, a feather. Charcoal – Carbon made by charring wood in a closed chamber; used in block form by jewelers to support work being soldered; and by watch-makers to hold steel to heat it for hardening. The color is caused by iron oxide. Cat's eye – The name given to a gem which, when cut cabochon, shows a single light streak across its face. Unforgettable Bling: Most Expensive Jewelry (Part II) –. To help you understand your certificate better, we have started by explaining the cut quality grading of the diamond. Direct seconds – A watch in which the center seconds hand is motivated directly from the centered fourth-wheel pinion. It was purchased in Geneva at the sale of the late Duke of Brunswick's jewels.
Cavity – Diamond grading. Already solved Market chain with a red oval logo crossword clue? Abundant and generally translucent or opaque, they can hardly aspire to higher ranking, although many are very decorative indeed. Jewelry piece cleaved crossword. The shape is also known as the 'step cut' because the large open facets bring to mind stair treads. Produced in 1972, its two diamonds are both triangular in shape. See BLACK ONYX; BLACK-TREATED OPAL; CHINESE RUBY; CULTURED PEARL; DYED JADEITE; TREATED TURQUOISE; SARDONYX. See EQUI-DISTANT PALLET, ESCAPEMENT. Colorless – Free of any color; preferable in a diamond description to the old, but inaccurate, blue-white.
Doped – One of the standard synthetics like YAG, scheelite, corundum, etc. Barbershop accessory. Diallage – (di'ah-lai) Chemically similar to diopside, but found in compact masses with schiller effect, and used as a dark brown, greenish or grayish decorative stone. Dodecahedron – (do'deck-a-hee'dron).
Continuity tests – Tests of electrical timepieces to discover breaks in a current flow. Calendar mechanism – Wheels, leaver, and plates to indicate day and dates in a time piece. It has been applied to aventurine glass. C. C – Abbreviation for "clean to the unaided eye". Violet rays transit diamond at 75, 000 miles a second; red 77, 000 miles a second. Cyclotron treatment – The principal diamond coloration process of the 1940's and early 1950's. See COLORIMETER, DIAMONDLITE, KOLORISCOP. Curb chain – Flattened link chain. It is an impartial evaluation that ensures procurement of diamonds and diamond jewellery in good faith. Conoscope – (kon'o-skope) An instrument for the examination of gems in convergent polarized light, which gives interference figures. This is the prevailing tooth form, displacing the earlier pointed or ratchet tooth characteristic of old English watches. Circuit, short – Excessive current caused by accidental contact across the electrical system. Cobaltite – A cobalt arsenic sulphide resembling pyrite though somewhat pinker, and some-times but as a gem.
49 carat trillion cut Tourmaline set in 18 karat gold with a detailed shank. Carbonado – (kar-bon-ah'doe) Black porous diamond, resembling coke in appearance. Final critical moment. 18 karat yellow gold earrings with rich, tear dropped shaped Turquoise stones and.
Dial, railroad – A dial on a large pocket watch with large, prominent numerals, more often in Arabic. See REFRACTION; REFRATICE INDEX. It is aluminum oxide, a naturally white compound, which is colored by impurities. Cerulene – (seer'u-leen) Little used trade name for an Australian calcite colored green and blue by malachite and azurite. The cut of the diamond has much to do with the overall appearance of the stone. Translucent whitish of yellowish cabochons are heated; plunged into cold water to induce fracturing; warmed in a solution using a blue and a yellow organic dye; dried, and placed in melted paraffin, which disguises cracks. Cascalhos – (kas-kal'yos) Portuguese name for gem-bearing alluvial sand and gravel deposits. Celestial stone – Turquoise. Colombian emerald – An emerald from Colombia, the locality for the finest emeralds and often used without regard to the true source to signify a good quality stone. Dial – The plate fixed behind the hands of a timepiece, marked with divisions and numerals for indicating time by movement of the hands. More complicated mechanisms show month; adjust for month lengths and lead years; show phases of moon, positions of stars, times of sunrise and sunset each day, difference between solar and mean time, and tidal changes.
This measurement is equal to the sum of the pitch-circle radii of both members of the gearing, and each radius is proportional to the number of teeth or leaves in its wheel or pinion. Golden Garnet from Mali. The word is derived from the medieval Latin meaning "bell"; the earliest clock struck time on bells, only; dials and hands were a later development. The specific dimensions ensure significant fire and scintillation.
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