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My talk • My contributions • Sandbox • My email • India • My autograph book • India-related topics notice board • Spoken articles • Quiz • Portals • India • UN • Chess • Dogs • Contents • Keyboard shortcuts • MCB • WP:SHORT • My userboxes • CHU • 3O • RfC • FAC • RfA • DYK • RC • New pages (skip) • Help • Village Pump • Welcoming Committee • Recent Changes Patrol • VandalProof • Be bold • Don't bite the newcomers • Five pillars • Beware of the tigers • Amnesia test • Signatures Welcome to Nirajrm's (Niraj) userpage Today is Monday, April 29, 2024, 05:36 (UTC/GMT). Picture of the day Sphalerite is a sulfide mineral with the chemical formula (Zn,Fe)S. It is found in a variety of deposit types, and is found in association with galena, chalcopyrite, pyrite (and other sulfides), calcite, dolomite, quartz, rhodochrosite, and fluorite. Sphalerite is an important ore of zinc, with around 95 percent of all primary zinc extracted from its ore. Due to its variable trace-element content, sphalerite is also an important source of several other metals such as cadmium, gallium, germanium and indium. The zinc in sphalerite is also used to produce brass. This sample was extracted in Creede, Colorado, and features black tetrahedral crystals of sphalerite up to 8 mm (0.31 in) in size, with minor chalcopyrite and calcite, in a 4.5 cm × 3.0 cm × 2.0 cm (1.77 in × 1.18 in × 0.79 in) matrix. This photograph was focus-stacked from 125 separate images.Photograph credit: Ivar Leidus Tip of the day... Setting Wikipedia time to your time zone Wikipedia's servers record activity based on Coordinated Universal Time (UTC for short). You can set your user preferences to display time for the time zone you are in. If you do this, Wikipedia will show all times in Recent changes, page histories, and contribution histories based on your local time zone. However, when you sign a talk page with ~~~~, the timestamp is created in text, so it has to be displayed in UTC. Automated logs such as image file uploads are also shown in server time (UTC). To show other users what time zone you are in, you could even add a time userbox to your own user page. Prior tip – Tips library – Next tip Read more: Setting preferences   Become a Wikipedia tipster To add this auto-updating template to your user page, use {{totd}} "The game of chess is not merely an idle amusement; several very valuable qualities of the mind are to be acquired and strengthened by it, so as to become habits ready on all occasions; for life is a kind of chess." — American philosopher, scientist, and author Benjamin Franklin