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     ]
    },
    {
     "label": "Mafic Tuff",
     "url": "18d57b964a40b11fb51dd9c7609fdd1f",
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     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Marble",
     "url": "83b52d4f845e415449964f2dd202db96",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWPpckj6z0AlUHZgHiMLtQyDgVEDRw0cNXDUwFEDaWVg2YF5jNQ0EABc9wYmQnvmwAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Medium-Grained Clastic Sedimentary Rocks",
     "url": "36f972f40ff9694627d18c6d9ebdf49f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNRapD5z0AlcK/hCSMLtQyDgVEDRw0cNXDUwFEDaWXgvYYnjNQ0EABeYwaUcXzLQgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Metamorphic / Protolith Uncertain",
     "url": "38d585a2eb6ef8354896f59946af20e4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNZHWz3n4FKIHTtIUYWahkGA6MGjho4auCogaMG0srA0LWHGKlpIABcggYWpMI2EQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Metamorphic Rocks",
     "url": "e78ddf01ee16849fa77ca992184393e5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNZphH6n4FKIOrGakYWahkGA6MGjho4auCogaMG0srAqBurGalpIABc6QYvDAQyjwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Mixed Volcanic and Sedimentary Rocks",
     "url": "1669cc5c36a2bba09641d0fda9e1d014",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWPRrmn+z0AlcLWllpGFWobBwKiBowaOGjhq4KiBtDLwakstIzUNBABdfQYoELucVAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Peralkaline Flows",
     "url": "797056fa6578d456a03909ce9a6527cd",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWPRWlPzn4FK4FpICyMLtQyDgVEDRw0cNXDUwFEDaWXgtZAWRmoaCABc/wYAB707rAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Peralkaline Intrusive Rocks",
     "url": "77a981d6d58b6aff6ad08099a004bac7",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWOpnWv6n4FKoDn5NCMLtQyDgVEDRw0cNXDUwFEDaWVgc/JpRmoaCABcbgYD9mGYkAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Peralkaline Tuff",
     "url": "7e0d1a32a06bf5957cc5779b2dc1d009",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWPZoGf5n4FKIODScUYWahkGA6MGjho4auCogaMG0srAgEvHGalpIABc5wY7LoUa4AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Red Manganiferous Shale",
     "url": "f3aae0dfe77306d399d551adbda77737",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNxb7H8z0AlsLPmOCMLtQyDgVEDRw0cNXDUwFEDaWXgzprjjNQ0EABdiQZO47XibgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Schist",
     "url": "54d6e53fdafc363c36770bcc396bedd0",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWPxzVn6n4FKYPOUaEYWahkGA6MGjho4auCogaMG0srAzVOiGalpIABc4QX0uhZHzQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Ultra Mafic Rocks",
     "url": "6a0b9390170efc67e862f19e5324babf",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWPp8nD4z0AlULbjACMLtQyDgVEDRw0cNXDUwFEDaWVg2Y4DjNQ0EABdIwZAFrpjnAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    },
    {
     "label": "Volcanic Rocks",
     "url": "b2fd90b239022666f445d9cf703cf8c5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNpVK/4z0AlUH+zg5GFWobBwKiBowaOGjhq4KiBtDKw/mYHIzUNBABdOgYy5hJgOwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    }
   ]
  }
 ]
}