Created by Marshall Snapp on May 7, 2000
Produced for the Canaveral Mineral & Gem Society, of Melbourne, FL.
| Across: 1. Plagioclase is in this group. The term is from old European name for 'field rock'. 3. Silicate of calcium and magnesium, pyroxene group. Usually black, sometimes shows asterism, and sometimes is green, due to chrome. 6. Noncrystalline hydrous silicon dioxide. Tiny internal spherules cause beautiful play of color. 7. Almandine, Spessartine, and Andradite are members of this mineral and gemstone family. 10. Iron oxide mineral. Polishes with a black but metallic sheen. Streaks red. 12. Hydrated sodium calcium borate. When laid on a picture or writing, transmits image to top of crystal. Also called 'TV Rock'. 14. Residue left in working water after tumbling, cabbing, and faceting. 15. The width or size of a cut through a material, that a saw makes. 16. Silicate of magnesium and iron. Comes in two "flavors": Fayalite and Forsterite. 17. Name for a single cut and polished plane of a multi-planed gemstone. 19. Pure silicon dioxide material. 22. Name for corundum, when red in color. 23. A complex borosilicate of aluminum and alkali, with iron, magnesium, and other cations. Gemstones sometimes are multicolor. 24. An abrasive material, available in a variety of graded sizes. 27. A unit of weight, one fifth of a gram. 28. A Chalcedony microcrystalline variety of quartz, which is black, sometimes with white lines or bands. 29. A material used by stonecutters before diamond became cost effective, know as silicon _______. 31. Corundum is aluminum oxide. This 'cousin' mineral is usually found with corundum, and is magnesium aluminum oxide. 32. Silcate of aluminum and magnesium. Gemstone name for Cordierite. 34. Silicate of sodium and aluminum. Member of the alkaline pyroxene group. Actually occurs in many colors, but the deep green is the most prized. Very tough material, and makes beautiful carvings. 36. This extrusive igneous rock is also known as 'natural glass'. 38. This mineral is lead arsenate chloride. Color ranges from yellow-brown to orange. 40. This mineral consists of barium sulfate. Purified material is used to make 'milkshakes' which are drank, before an x-ray examination is given. 41. Common table salt belongs to this mineral group. 42. This material consists of iron sulfide. It appears as a yellowish iron. It has made 'fools' of some people, due to it's somewhat similar appearance to gold. |
| Down: 2. A gemstone of the Beryl group, when colored green by chromium (sometimes vanadium). 3. The stick or rod onto which cabbers and faceters mount their stones, to then be be cut and polished. 4. The amount that a substance bends light waves is measured by the refractive _____. 5. The microcrystalline concretionary form of quartz. The diaphaneity ranges from translucent to semiopaque to opaque. Sometimes one color, sometimes banded or swirls. 8. Pink Zoisite, found in Norway and Greenland. 9. Organic gemstone, produced by the secretion of conchiolin (nacre) by a mollusk, holding tiny calcium carbonate crystals together, around a grain of sand or small parasite. 11. A gemstone of the Beryl group, when colored pink by manganese. 13. The measure for the degree to which light is reflected by the surfaces of a mineral. 17. Calcium fluoride. Occurs in many colors. Is used as a flux in the metal industry. 18. Organic gemstone, which is fossilized resin (sap), from now extinct trees. 20. Silicate of zirconium. Occasionally containing thorium and uranium, and radioactive. It has a very high refractive index. 21. Quartz gemstone material, which has zones of golden yellow and violet colors. 25. Silicate of aluminum containing fluorine and hydroxyl. Occurs clear, golden yellow, blue (usually artificially irradiated) and Imperial pink. 26. This mineral consists of aluminum silicate. It is a nesosilicate, and the crystals occur as beautiful royal blue blades. 29. This mineral consists of calcium carbonate. It is also the name of a mineral group. It is found the world over. 30. Calcium borosilicate. Usually clear, occasionally pale yellow or pink. Named after a city in Connecticut. 33. Hardest natural mineral. A girls best friend. 35. A complex group. It falls under the phosphates, arsenates, vanadates. Bones and teeth are made from this mineral! Used in the manufacture of phosphate fertilizers. 37. Faceters cut and polish their stones on this spinning device. 39. The degree of surface hardness of a mineral or gemstone is referenced to this scale. |
|
This crossword was generated in the .wmf format, and lost a little definition in the conversion to the .jpg format, necessary for website usage. You can print this page directly with your browser's print command. You can touch the box numbers up if necessary, after you have printed it out. Attention Club Bulletin Editors: If you find that the website printout version makes it awkward to fit into your bulletin, e-mail me, and I will send you the puzzle picture and puzzle answer jpeg files, and the clues in a text format, without the html code. You can then size the text with any standard word processor or bulletin editor software, so as to fit into your bulletin column size. |
Have fun! If you like it,
Let me know by e-mail.  |
Click on the above icon, to see the answers to the CM&GS mineral/gemstone/lapidary crossword puzzle! |
To Top of Page
reports this puzzle has been visited
times, since 05/07/00