The principal types of natural graphite, each occurring in different types of\u00a0ore\u00a0deposits are:<\/p>\n

There are three distinct types of natural graphite which occur in different kinds of ore deposits:<\/p>\n

<\/p>\n

\n
1. Flake Graphite<\/strong><\/li>\n<\/ol>\n
   \n
   • Less common form of graphite<\/li>\n
   • Carbon range of 85-98%.<\/li>\n
   • Priced ~4X higher than amorphous graphite<\/li>\n
   • Used in many traditional applications<\/li>\n
   • Desirable for emerging technology graphite applications (e.g. Li-ion battery anode material)<\/li>\n
   • Crystalline\u00a0small flakes of graphite (or flake graphite) occurs as isolated, flat, plate-like particles with\u00a0hexagonal\u00a0edges if unbroken.<\/li>\n
   • When broken the edges can be irregular or angular;<\/li>\n<\/ul>\n
     \n
     1. Amorphous Graphite<\/strong><\/li>\n<\/ol>\n
        \n
        • Most abundant form of graphite<\/li>\n
        • Comparatively low carbon content of 70-80%<\/li>\n
        • No visible crystallinity<\/li>\n
        • Lowest purity<\/li>\n
        • Not of suitable quality for use in most applications<\/li>\n<\/ul>\n
          \n
          1. High Crystalline Graphite<\/strong>\u00a0(vein, lump or crystalline vein)<\/li>\n<\/ol>\n
             \n
             • Only extracted from Sri Lanka<\/li>\n
             • Carbon content of 90-99%<\/li>\n
             • Scarcity and high cost restricts viability for most applications<\/li>\n<\/ul>\n

               4.\u00a0Lump graphite (or vein graphite) occurs in fissure\u00a0veins\u00a0or\u00a0fractures\u00a0and appears as massive platy intergrowths of fibrous or\u00a0acicular\u00a0crystalline\u00a0aggregates, and is probably\u00a0hydrothermal\u00a0in origin.<\/p>\n

               5.Highly ordered pyrolytic graphite\u00a0refers to graphite with an angular spread between the graphite sheets of less than 1\u00b0.<\/p>\n

               *Synthetic graphite<\/strong>\u00a0is a manufactured product made by high-temperature treatment of amorphous carbon materials. In the United States, the primary feedstock used for making\u00a0synthetic graphite<\/strong>\u00a0is calcined petroleum coke and coal tar pitch. This makes it very expensive to produce \u2014 up to 10 times the cost of natural graphite \u2013 and less appealing for use in most applications. The name “graphite fiber” is sometimes used to refer to\u00a0carbon fibers\u00a0or\u00a0carbon fiber-reinforced polymer.<\/p>\n","protected":false},"excerpt":{"rendered":"

               The principal types of natural graphite, each occurring in different types of\u00a0ore\u00a0deposits are: There are three distinct types of natural graphite which occur in different…<\/p>\n","protected":false},"author":1,"featured_media":1020,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[159],"tags":[364,363,160,365,366],"jetpack_publicize_connections":[],"yoast_head":"\n