Item#2: Native Copper

native-copper.jpgcopper-detail.jpg

Cuprul nativ apare ca depozit hidrotermal asociat cu alterarea rocilor eruptive si vulcanice sau in infiltratiile poroase ale rocilor sedimentare. Ocurenta este comuna, insa doar in cantitati foarte mici.

Native copper occurs as a hydrothermal deposit associated with alteration of igneous and volcanic rocks, or infiltrating porous sedimentary rocks. Native copper, though widely distributed, occurs only in small amounts.

Sistemul de cristalizare/ Cristal system: cubic

Habitus: dendritic, ramuros; cristale cubice sau dodecaedrice/ dendritic, branching forms, cubic or rhombododecahedral crystals.

Culoare/ Colour: rosu/ copper-red

Clivaj/ Cleavage: nu/ none

Duritate/ Hardness: 2.5-3

Luciu/ Luster: metalic

Transparenta/ Transparency: opac

Alte proprietati/ Other: ductil, solubil in acid azotic; ductility, readily soluble in nitric acid.

The photos can be used if source is acknowledged.

15 thoughts on “Item#2: Native Copper

  1. deci te rog frumos sa observi cu ce comentarii serioase vin eu la muzeu, chestii stintifice aici iar eu ce faina e culoarea :))). Asa am facut odata cu niste bete de tobe, am primit un set si eu woaaaa sunt portocalii!! ce faine sunt!! no a cam ras ala de mine ca eu nu m-am uitat nici la grosime nici la lungime ci la culoare πŸ˜€

  2. LOL,,,
    no da totusi macar bucuria ta o fost veridica! ar fi trebui sa fie multumit ca ti o facut un cadou care ti o placut

  3. in fiecare saptamana voi pune cate un “exponat”
    asa ca intra in fiecare zi sa vezi daca l am postat:)))))))))))

    MDR

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s