MINERALOGY. 



445 



Ortctogno- k. Asparagui-green is pistachio-preen mixed with a 



T- little greyish white; or emerald-green mixed with 



s ~> ^"* yellow and a little brown. It passes into liver. 



brown. Examples, Garnet, olivenite and beryl. 

 L OHve-srttn is grass-green mixed with much brown 

 and a kittle prey. It passes into liver brown. Ex- 

 amples, Common garnet, olivciiite, pitchstone, and 

 epidote or pistacite. 



m. Oil-green is emerald-green mixed with yellow, 

 brown and grey ; or pistachio-green, with much 

 yellow and light ash-grey. It is the colour of fresh 

 vegetable oil. Examples, Fuller's-earth, beryl and 

 pitch stone. 



n. Siikin- green is emerald-green mixed with much le- 

 mon-yellow and a little white. It makes the transi- 

 tion to the yellow colour. Examples, Uran-mica, 

 green lead-spar and steatite. 



F. YM.LOW. 



Among the varieties of this species of colour, there are 

 three possessing metallic lustre, viz. brass-yellow, 

 gold-yellow, and bronze-yellow. The characteristic 

 colour, which is lemon-yellow, is placed in the mid- 

 dle of the series ; the colours which precede it are 

 greenish-yellow, and those which follow it are red- 

 di-h-yellow. The one side of the series, by the in- 

 crease of the green, passes by sulphur-yellow into 

 green ; the other, by the increase of red, passe* by 

 means of orange-yellow, into red. It is a frequent 

 colour in the mineral kingdom. The following are 

 its varieties. 



a. Sulphur-yellow is lemon-yellow mixed with much 

 emerald green and white. It is the colour of native 

 sulphur. Example, Native sulphur. 



6. BraH-yeUotr differs from the preceding colour prin- 

 cipally in having a metallic lustre ; it contains a 

 small portion of grey. Example, Copper-py rites. 



c. Strait-yellow is sulphur-yellow mixed with much 

 greyish white. It passes into ayellowMi-white and 

 yellowish-grey. Example, Calamine, serpentine and 

 yellow cobalt-ochre. 



d. Bronze-yellow is brass-yellow mixed with a little 

 steel-grey, and a minute portion of reddish brown. 

 The colour of bell-metal. Example, Iron-pyrites. 



e. Wax-yellow is lemon-yellow mixed with reddish- 

 brown, and a little ash-grey ; or it may be consider- 

 ed as honey-yellow with greyish white. It is the 

 colour of pure unbleached wax. .Examples, Opal 

 and yellow lead-spar. 



f. Honey-yellow is sulphur-yellow mixed with chest- 

 nut brown. It passes into yellowish brown. Ex- 

 ample*, Fluor-spar and beryl. 



g. Lemon-yellow is the pure unmixed colour. It is the 

 colour of ripe lemons. Examples, Yellow orpi- 

 ment. 



h. Cold-yellow is the preceding colour with metallic 

 lustre. Example, Native gold. 



i. Ochre-yellow is lemon-yellow mixed with a consi- 

 derable quantity of light chesnut brown. It passes 

 into yellowish brown. It is a very common colour 

 among minerals. Examples, Yellow earth and jas- 

 per. 



*. fVine-yelhm is lemon-yellow mixed with a small 

 portion of red and greyish-white. The colour of 

 n home-made wine. Examples, Saxon and 

 Brazilian topaz. 



/. Crram-yeUow or Iiabella-ycUmc. It contains more 

 red and grey than the wine-yellow, and also a little 



brown. It passes into flesh-red. Examples, Bole Oryctogno- 



frem Strigau, and compact limestone. . sy '^_^ 



m. Orange-yellow is lemon-yellow with carmine-red. """Y" 

 It is the colour of the ripe orange. Examples, 

 Streak of red-orpiment, and uran-ochre. 



G. RED. 



It exhibits more varieties than the other colours, and 

 is very common in the mineral kingdom. The cha- 

 racteristic colour is carmine-red ; all the others in- 

 cline either to yellow or blue : hence there are two 

 principal suites ; the first of which contains yellow, 

 ish-rcd colours ; the second bluish-red colours. 

 The red colours are principally owing to oxides of 

 iron, manganese and cobalt, and combinations of 

 metals with sulphur and arsenic. The following are 

 the varieties. 



a. Aurora or morning red is carmine-red mixed with 

 much lemon-yellow. It passes into orange-yellow. 



-Example, Red or pirn en t. 



b. Hyacinth-red is carmine-red mixed with lemon-yel- 

 low and a minute portion of brown ; or aurora-red 

 mixed with JL minute portion of brown. It passes 

 into brown. Examples, Hyacinth and tile-ore. 



c. Tile-red is hyacinth-red, mixed with greyish-whife. 

 It is the colour of tiles or bricks. Examples, Porce- 

 lain-jasper and zeolite. 



d. Scarlet-red is carmine-red mixed with a very little 

 lemon-yellow. It is a well-known colour of much 

 intensity. Example, Light-red cinnabar from Wolf- 

 stein. 



e. Blood-red is scarlet-red mixed with a small portion 

 of black. Examples, Pyrope and jasper. 



f. Fleih-red is blood-red mixed with greyih-whitc. 

 Examples, Felspar, calcareous spar, and straight la- 

 mellar heavy spar. 



g. Copper-red. It scarcely differs from the preceding 

 variety, but in possessing a metallic lustre. Exam* 

 pies, Native copper and copper-nickel. 



k. Carmine-red is the characteristic colour. Example, 

 Spinel, particularly in thin splinters. 



/. Cochineal-red is carmine-red mixed with bluish- 

 grey. Examples, Dark red cinnabar and red copper- 

 ore. 



k. Crimion-red is carmine-red mixed with a considera- 

 ble portion of blue. Example, Oriental ruby. 



/. Columbine-red is carmine-red, with more blue than 

 the preceding variety, and, what is characteristic 

 for this colour, a little black. Example, Precious 

 garnet 



m. Rote-red is cochineal red mixed with white. It 

 passes into reddish-white. Examples, Red manga. 

 nese and quartz. 



n. Peach blotiom-red is crimson-red mixed with white. 

 Example, Red cobalt-ochre. 



o. Cherry-red is crimson red mixed with a considerable 

 portion of brownish-black. Examples, Spinel, red 

 antimony, and precious garnet. 



/). Brotrnith-red is blood-red mixed with brown. It 

 passes into brown. Example, Clay ironstone. 



II. BROWN. 



This, after black, is the darkest colour in the system. 

 The whole species or suite can be distinguished into 

 those which have red, and those which have yellow 

 mixed ; between these is placed the fundamental 

 colour, the pure unmixed chestnut-brown, and the 

 last variety, from the quantity of black it contains 



