Fail:Amazonite (Crystal Peak, Teller County, Colorado, USA) 1 (34073585601).jpg
Algfail (2784 × 2149 pikslit, faili suurus: 3,43 MB, MIME tüüp: image/jpeg)
See fail ja sellest kastist allapoole jääv kirjeldus pärinevad kesksest failivaramust Wikimedia Commons. | Faili lehekülg Commonsis |
Lühikirjeldus
KirjeldusAmazonite (Crystal Peak, Teller County, Colorado, USA) 1 (34073585601).jpg |
Amazonite (= microcline feldspar) (centimeter scale) A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5100 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates. The silicates are the most abundant and chemically complex group of minerals. All silicates have silica as the basis for their chemistry. "Silica" refers to SiO2 chemistry. The fundamental molecular unit of silica is one small silicon atom surrounded by four large oxygen atoms in the shape of a triangular pyramid - this is the silica tetrahedron - SiO4. Each oxygen atom is shared by two silicon atoms, so only half of the four oxygens "belong" to each silicon. The resulting formula for silica is thus SiO2, not SiO4. The simplest & most abundant silicate mineral in the Earth's crust is quartz (SiO2). All other silicates have silica + impurities. Many silicates have a significant percentage of aluminum (the aluminosilicates). Feldspar is a group of common silicate minerals. Feldspars are silicate minerals having one-fourth of all the silicons in SiO2 replaced by aluminum (Si4O8 to (Si3Al)O8). When this happens, the (Si3Al)O8 has a -1 electric charge. The charge is satisfied by the addition of one or more metals. The (Si3Al)O8- structure has relatively large holes, and the only metals that tend to stay in these holes are: K (potassium), Na (sodium), Ca (calcium), Cs (cesium), Ba (barium), Sr (strontium), and Pb (lead). Of these, K & Na & Ca are the most common metals that enter the matrix. Sometimes, several different metals enter the structure, resulting in "garbage can minerals". Chemical analyses of feldspars show that they range in composition from K-feldspar to Na-feldspar and from Na-feldspar to Ca-feldspar. Mineralogists have thus established two "families" of feldspars. There is no chemical gradient between K-feldspar and Ca-feldspar. The potassium feldspars (K-feldspars) (also known as alkali feldspars) are those that range in composition from pure K-feldspar to pure Na-feldspar (actually, feldspars with ~even & random mixes of potassium and sodium are rare). The feldspars with Na and/or Ca are the plagioclase feldspars. All feldspars have similar physical properties: a hardness of about 6, a whitish streak, and two cleavage planes at or very near 90º. Potassium feldspar is usually whitish to cream-colored to pinkish-orangish-salmon colored. "Potassium feldspar" refers to a group of several different K-rich minerals: orthoclase, microcline, adularia, sanidine, and anorthoclase. Orthoclase, microcline, and adularia have the chemical formula KAlSi3O8 - potassium aluminosilicate. Sanidine and anorthoclase have the formula (K,Na)AlSi3O8. Amazonite is a distinctively green-colored K-feldspar. Specifically, amazonite is green microcline - it is known from several localities around the world. Green orthoclase is also known, but is extremely rare - it was formerly only known from the Broken Hill Block in New South Wales, Australia (see: <a href="https://www.flickr.com/photos/jsjgeology/15120707951">www.flickr.com/photos/jsjgeology/15120707951</a>), but it's since been found elsewhere. The coloration in green microcline (& green orthoclase) is due to lead impurity. The Colorado amazonite shown here has a bluish-green color. It comes from a pegmatitic granite occurrence in the Proterozoic-aged Pikes Peak Batholith (1.08 Ga). Locality: unrecorded/undisclosed site at or near Crystal Peak, Teller County, central Colorado, USA Photo gallery of amazonite: <a href="https://www.mindat.org/gallery.php?min=184" rel="nofollow">www.mindat.org/gallery.php?min=184</a> |
Kuupäev | |
Allikas | Amazonite (Crystal Peak, Teller County, Colorado, USA) 1 |
Autor | James St. John |
Litsents
- Tohid:
- jagada – teost kopeerida, levitada ja edastada
- kohandada – valmistada muudetud teoseid
- Järgmistel tingimustel:
- omistamine – Pead materjali sobival viisil autorile omistama, tooma ära litsentsi lingi ja märkima ära, kas on tehtud muudatusi. Sobib, kui teed seda mõistlikul viisil, kuid seejuures ei tohi jääda muljet, et litsentsiandja tõstab esile sind või seda, et sina materjali kasutad.
James St. John postitas selle pildi algselt saidile Flickr. Robot FlickreviewR 2 vaatas selle pildi üle ja kinnitas, et see oli saadaval litsentsi cc-by-2.0 all. Vaadatud: 16. november 2018 |
16. november 2018
Selles failis kujutatud üksused
kujutab
Teatud väärtus ilma Vikiandmete üksuseta
19. aprill 2017
captured with inglise
Canon PowerShot D10 inglise
0,01666666666666666666 sekund
f-number inglise
9
7,23 millimeeter
ISO speed inglise
80
MIME type inglise
image/jpeg
checksum inglise
75a340640b547f28988c9b161bc78ff9a9d458c2
data size inglise
3 594 585 Bait
2149 piksel
2784 piksel
Faili ajalugu
Klõpsa kuupäeva ja kellaaega, et näha sel ajahetkel kasutusel olnud failiversiooni.
Kuupäev/kellaaeg | Pisipilt | Mõõtmed | Kasutaja | Kommentaar | |
---|---|---|---|---|---|
viimane | 16. november 2018, kell 15:41 | 2784 × 2149 (3,43 MB) | NMaia | Transferred from Flickr via #flickr2commons |
Faili kasutus
Seda faili kasutab järgmine lehekülg:
Metaandmed
See fail sisaldab lisateavet, mille on tõenäoliselt lisanud digikaamera või skanner.
Kui faili on rakendustarkvaraga töödeldud, võib osa andmeid olla muudetud või täielikult eemaldatud.
Kaamera tootja | Canon |
---|---|
Kaamera mudel | Canon PowerShot D10 |
Säriaeg | 1/60 sek (0,016666666666667) |
F-arv | f/9 |
Valgustundlikkus (ISO) | 80 |
Andmete loomise kuupäev ja kellaaeg | 19. aprill 2017, kell 16:55 |
Fookuskaugus | 7,23 mm |
Pildi pealkiri | |
Laius | 4000 px |
Kõrgus | 3000 px |
Bitti komponendi kohta |
|
Pikslite koosseis | RGB |
Orientatsioon | Normaalne |
Komponentide arv | 3 |
Horisontaalne eraldus | 180 dpi |
Vertikaalne eraldus | 180 dpi |
Kasutatud tarkvara | Adobe Photoshop Elements 13.0 (Macintosh) |
Faili muutmise kuupäev ja kellaaeg | 22. aprill 2017, kell 16:58 |
Y- ja C-positsioonimine | Kõrvuti asetatud |
Exif-versioon | 2.21 |
Digiteerimise kuupäev ja kellaaeg | 19. aprill 2017, kell 16:55 |
Iga komponendi tähendus |
|
Pildi pakkimise meetod | 3 |
APEX-säriaeg | 5,90625 |
APEX-avaarv | 6,34375 |
Särituse mõju | −0,66666666666667 |
Vähim ava | 3,34375 APEX (f/3,19) |
Mõõtmisviis | Muster |
Välk | Välk töötas, sundvälk, punasilmsust vähendav režiim |
Toetatud Flashpixi versioon | 1 |
Värviruum | sRGB |
Fokaaltasandi rõhteraldus | 16 460,905349794 |
Fokaaltasandi püsteraldus | 16 483,516483516 |
Fokaaltasandi eraldusühik | toll |
Tundlikustamismeetod | Ühe kiibiga värviandur |
Faili päritolu | Digitaalne fotokaamera |
Kohandatud pilditöötlus | Tavatöötlus |
Särituse meetod | Manuaalne säritus |
Valge tasakaal | Automaatne valge tasakaal |
Digisuumi tegur | 1 |
Ülesvõtte tüüp | Portree |
Kasutatud objektiiv | 6.2-18.6 mm |
Metaandmete viimane muutmisaeg | 22. aprill 2017, kell 12:58 |
Algse dokumendi ainuline ID | D84B75F934F70779062FDC4276AAB09C |