Tourmaline<\/a> is a group of borosilicate minerals with a complex chemical composition and a wide variety of colours. It occurs in virtually every colour of the rainbow, including pink, green, blue, black and multi-coloured combinations. This variety makes tourmaline one of the most popular gemstones in the jewellery world.<\/p>\n Tourmaline usually forms in pegmatites and metamorphic rocks. Major deposits include Brazil, Afghanistan, Mozambique, Nigeria and the United States. The chemical formula varies, but a general form is (Ca,K,Na)(Al,Fe,Li,Mg,Mn)\u2083(Al,Cr,Fe,V)\u2086(BO\u2083)\u2083(Si,Al,B)\u2086O\u2081\u2088(OH,F)\u2084. The hardness is between 7 and 7.5 on the Mohs scale.<\/p>\n Popular varieties include black tourmaline (sch\u00f6rl), pink tourmaline (rubellite), green tourmaline (verdelite) and watermelon tourmaline (pink interior, green rim).<\/p>\n Sources: <\/strong> \n These faceted, ball or beaded bracelets are strung on a sturdy, double elastic, making them suitable for different wrist sizes. Our bracelets range in bead diameter from 4 mm to 10 mm, with the wrist circumference varying slightly by size. The smaller sizes have a wrist circumference of about \u00b1 160 mm, increasing to \u00b1 180 mm for the larger ones. For children's bracelets, the wrist circumference is the smallest in our range, which is \u00b1 12 to 13 cm.\n<\/p>\n \n We also offer split bracelets, where the split used ranges from 5 to 10 mm. These bracelets are also strung on sturdy, double elastic, with a circumference of approximately 16 cm to a maximum of 18 cm. Please note that there may sometimes be a different type between the pieces of split used. Our split bracelets are sold per 10 pieces in most cases, but there are exceptions.\n<\/p>\n \n Please note that we do not always have every size of every variety in our range.<\/p>\n<\/p>","protected":false},"excerpt":{"rendered":" Pink Tourmaline Faceted 4 mm bracelet from China.<\/p>","protected":false},"featured_media":56229,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"soort":[],"product_brand":[],"product_cat":[2481],"product_tag":[],"class_list":{"0":"post-56221","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-4-mm-facetarmband","7":"pa_herkomst-china","8":"pa_maat-4-mm","9":"pa_soort-roze-toermalijn","10":"pa_soort-toermalijn","11":"pa_verkoopeenheid-per-stuk","12":"pa_vorm-armband","13":"pa_vorm-facetarmband","14":"desktop-align-center","15":"tablet-align-center","16":"mobile-align-center","17":"ast-product-gallery-layout-horizontal-slider","18":"ast-product-tabs-layout-horizontal","20":"first","21":"outofstock","22":"taxable","23":"shipping-taxable","24":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/www.ruschmineralen.nl\/en\/wp-json\/wp\/v2\/product\/56221","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ruschmineralen.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.ruschmineralen.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ruschmineralen.nl\/en\/wp-json\/wp\/v2\/media\/56229"}],"wp:attachment":[{"href":"https:\/\/www.ruschmineralen.nl\/en\/wp-json\/wp\/v2\/media?parent=56221"}],"wp:term":[{"taxonomy":"soort","embeddable":true,"href":"https:\/\/www.ruschmineralen.nl\/en\/wp-json\/wp\/v2\/soort?post=56221"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.ruschmineralen.nl\/en\/wp-json\/wp\/v2\/product_brand?post=56221"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.ruschmineralen.nl\/en\/wp-json\/wp\/v2\/product_cat?post=56221"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.ruschmineralen.nl\/en\/wp-json\/wp\/v2\/product_tag?post=56221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Mindat.org<\/a>, Gemdat.org<\/a>, Wikipedia - Tourmaline<\/a><\/small><\/p>\n