File:Uncle Sam Diamond (cropped).jpg

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Uncle_Sam_Diamond_(cropped).jpg ‎(352 × 303 pixels, file size: 126 KB, MIME type: image/jpeg)

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:12, 27 January 2023		352 × 303 (126 KB)	commons>Valereee	File:Colorado Diamond Crystal, Freedom Diamond, Uncle Sam Diamond, Canary Diamond.jpg cropped 77 % horizontally, 67 % vertically using CropTool with precise mode.

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Camera manufacturer	Canon
Camera model	Canon EOS 5DS
Author	Kate D. Sherwood and Brittany M. Hance
Copyright holder	This image was obtained from the Smithsonian Institution. No copyright restrictions exist.
Exposure time	1/125 sec (0.008)
F Number	f/16
ISO speed rating	200
Date and time of data generation	13:55, 12 March 2020
Lens focal length	100 mm
Label	Approved
Credit/Provider	Kate D. Sherwood and Brittany M. Hance, Smithsonian Institution
Source	National Museum of Natural History (NMNH), Smithsonian Institution
Headline	Freedom Diamond, Uncle Sam Diamond, and Two Diamond Crystals
Online copyright statement	http://www.si.edu/termsofuse
Image title	Four American diamonds from the National Gem and Mineral Collection at the Smithsonian Institution National Museum of Natural History. Catalog numbers include: 171594, an uncut, 6.45-carat diamond crystal; G11740, the Freedom Diamond; G11741, the Uncle Sam Diamond; and R2, an uncut, yellow diamond crystal. These diamonds are among the largest and finest American diamonds, and originate from the only two locations where diamonds have been mined in the United States: Kelsey Lake, Colorado from 1996 to 2001, and Crater of Diamonds, Murfreesboro, Arkansas from 1919 to 1926. Although producing tens of thousands of carats of rough diamonds, neither mining venture was commercially successful. The Kelsey Lake mine is closed and reclaimed, and Crater of Diamonds is now an Arkansas state park where visitors can search for and keep the diamonds they find - typically about 600 per year. The Freedom Diamond and clear diamond crystal originate from Kelsey Lake, while the Uncle Sam Diamond and yellow diamond crystal originate from Crater of Diamonds. The Freedom Diamond is a gift of Robert E. and Kathy G. Mau. The Uncle Sam Diamond is a gift of Dr. Peter Buck. And, the yellow Arkansas diamond crystal is a gift of John A. Roebling.
Short title	NMNH-2020-00645.tif
Usage terms	http://www.si.edu/termsofuseThis image was obtained from the Smithsonian Institution. No restrictions exist for this image. Please contact the Office of Photography and Media at the Smithsonian Institution National Museum of Natural History for additional information regarding the use or reproduction of this image. A fee may apply.
City shown	Washington
Width	8,038 px
Height	4,899 px
Bits per component	16 16 16
Compression scheme	Uncompressed
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Data arrangement	chunky format
Software used	Adobe Photoshop CC 2019 (Macintosh)
File change date and time	16:42, 28 May 2020
Exposure Program	Manual
Exif version	2.31
Date and time of digitizing	13:55, 12 March 2020
APEX shutter speed	6.965784
APEX aperture	8
APEX exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Metering mode	Pattern
Flash	Flash did not fire, compulsory flash suppression
Color space	sRGB
Focal plane X resolution	2,413.3333435059
Focal plane Y resolution	2,413.3333435059
Focal plane resolution unit	3
Custom image processing	Normal process
Exposure mode	Manual exposure
White balance	Manual white balance
Scene capture type	Standard
Serial number of camera	062021000847
Lens used	EF100mm f/2.8L Macro IS USM
Date metadata was last modified	12:42, 28 May 2020
Special instructions	For copies or reproduction info call +1 (202) 633-0780 or email NMNH-Photo@si.edu.
Original transmission location code	PHOTO-2020-0183
Unique ID of original document	22EF65A8874C334B7B552AC684C78D2E
Copyright status	Copyright status not set
Keywords	Smithsonian Institution SI National Museum of Natural History NMNH Mineral Sciences Mineralogy gems minerals diamonds crystals 171594 171594 00 171594-00 G11740 11740 Freedom Diamond Freedom Diamond Ring rings G11741 11741 Uncle Sam Diamond Uncle Sam R2 NMNH R2-00 R2-00 R2 00 R 2 00 Kelsey Lake Colorado Crater of Diamonds Murfreesboro Arkansas Mau Robert E. Mau Kathy G. Mau Buck Peter Buck Roebling Washington Roebling John A. Roebling
Contact information	NMNH-Photo@si.edu http://naturalhistory.si.edu/ Smithsonian Institution National Museum of Natural History Office of Photography and Media PO Box 37012 NMNH, Room 375, MRC 110 Washington, DC, 20013-7012 USA +1 (202) 633-0780
Province or state shown	DC
Country shown	USA
Sublocation of city shown	Smithsonian Institution, National Museum of Natural History
Code for country shown	US
IIM version	4

File:Uncle Sam Diamond (cropped).jpg

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