A bheil geamannan mèinnireach?

A bheil geamannan mèinnireach?

Is e companaidh ceimigeach a tha a 'tachairt gu nàdarra a th' ann am mèinnir, mar as trice de chruth criostalach agus chan eil e air a dhèanamh le pròiseasan beatha. Tha aon riochdachadh ceimigeach sònraichte aig mèinn, ach faodaidh creag a bhith na th 'ann de dhiofar mhèinnirean. Is e mèinn-eòlas saidheans mèinnirean.

Most gemstones are minerals

Minerals have various physical properties. Their description depsnds on their chemical structure and composition. Common distinguishing characteristics include crystal structure and habit, also hardness, lustre, diaphaneity, colour, streak, tenacity, cleavage, fracture, parting, specific gravity, magnetism, taste or smell, radioactivity, and reaction to acid.

Am measg nan clach-eun mèinnearach: Quartz, diamond, corrundum, beryl, ...

Synthetic gemstones

Tha e cudromach eadar-dhealachadh a dhèanamh eadar leacan-cloiche sintéise, agus seudan brèige no samhlaichte.

Synthetic gems are physically, optically and chemically identical to the natural stone, but made in a Factory. In the trade maket, gemstones dealers use often the name “lab created”. It makes the synthetic stone more marketable than “factory created”.

Iomadachd de chlachan-gàirdean synthasta: gnàthachas sìnthetach, daoimean sintéiseil, cuarts sintéise, ...

Artificial gemstones

Examples of Artificial stones include cubic zirconia, composed of zirconium oxide and simulated moissanite, which are both gemstones simulants. Imitations copy the look and color of the real stone but possess neither their chemical nor physical characteristics. Moissanite actually has a higher refractive index than diamond and when presented beside an equivalently sized and cut diamond will have more “fire” than the diamond.

Rocks

Is e stuth nàdarra a th 'ann an creag, cruinneachadh iomlan de aon no barrachd mèinnirean no mineralids. Mar eisimpleir, tha Lapis lazuli na chreig domhaamormamach gorm. Is e clach leth-luachmhor a th 'ann an seòrsachadh. Is e an earrann mèinnearach as cudromaiche de lapis lazuli lazurite (25% gu 40%), mèinnear silicate mardspathoid.

Leacan-uaighe organach

Tha grunn stuthan organach air an cleachdadh mar sheems, a 'gabhail a-steach:
Amber, Ammolite, Cnàmh, Copal, Coral, Ivory, Jet, Nacre, Operculum, Pearl, Petoskey cloiche

Mineralids

Is e stuth coltach ri mèinnearach a th 'ann am mineralid nach eil a' sealltainn criostalan. Tha mèinnean-mine a 'sealbhachadh ceimigean ceimigeach a tha ag atharrachadh nas fhaide na na raointean a tha a' gabhail a-steach mèinnirean sònraichte. Mar eisimpleir, is e glainne garbhlach a th 'ann an obsidian agus chan e criostail. Tha iasg a 'tighinn bho fhiodh a tha a' crìonadh fo dhroch bhruthadh. Is e mineralid eile a tha ann an Opal air sgàth a nàdar neo-chriostalach.

Mineralids air an dèanamh le daoine

Glainne air a dhèanamh le duine, plastaig, ...

mearachd: -Susbaint a dhìon !!