巴西1990年版10分硬币（收于2018年）巴西联邦共和国简称巴西，素有"咖啡王国"之称。是南美洲最大的国家，金砖五国之一；享有"足球王国"的美誉。领土851.49万平方公里，人口2.09亿，皆居世界第五。巴西高原为世界面积最大高原；巴西首都1960年4月21日从里约热内卢迁到巴西高原中部的新城巴西利亚。总统：雅伊尔·博尔索纳罗。
古代巴西为印地安人居住地。16世纪初沦为葡萄牙殖民地。1822年9月7日建立巴西帝国；1889年11月15日成立巴西合众国。1964年3月，巴军人政变上台，实行独裁统治。1967年，改国名为巴西联邦共和国。1985年3月军政府还政于民。
巴西奉行独立自主、不干涉内政、尊重主权与领土完整、和平解决争端和友好共处的对外政策。大力推动南美及拉美一体化进程。是南美洲国家联盟成员。也是里约集团创始国之一。1974年8月15日，巴西与中国建立外交关系。
巴西拥有丰富的自然资源和完整的工业基础，国内生产总值位居南美洲第一，世界第八位（2017年）；铁矿砂的储量排名全球第5；石油探明储量153亿桶，居世界第15位，南美地区第二位（仅次于委内瑞拉）。全球第二大转基因作物种植国、第一大大豆生产国、第四大玉米生产国，畜牧牛的数量居世界第2，仅次于印度。是继美国、俄罗斯、法国、英国、中国、印度之后，第七个拥有核潜艇的国家。全国共有2498个飞机起降点，居世界第二。
巴西货币雷亚尔，由巴西中央银行发行，辅币分。1雷亚尔=100分。此10分硬币材质为不锈钢；直径18.42毫米；重量 2.4900克；正面主图为大轮廓面额10，右边是5颗星星，下面是辅币单位CENTAVOS和葡萄牙语国名BRASIL；背面主图是一个毛矿工正在河谷中淘钻，底部有三颗钻石，钻石下面是货币发行年份1990字样。巴西的钻石大多出产于河流；这样的钻石被称作"冲积钻"，它们在整体质量上要优于从矿坑中开采出来的钻石。毛矿工在人们的心中颇具传奇色彩；不论他们高低贵贱，发现了钻石，就享有他们应得的那份利益，而且他们的佣金必须分文不少即时付清。The Federative Republic of Brazil is called Brazil for short and is known as the "coffee kingdom". It is the largest country in South America and one of the BRICS countries. Enjoy the reputation of "football kingdom". The territory covers 8.514 million square kilometers and has a population of 209 million, ranking fifth in the world. Brazil Plateau is the largest plateau in the world. The Brazilian capital moved from Rio de Janeiro to Brasilia, a new city in the middle of the Brazilian plateau, on April 21, 1960. President:Jair Bolsonaro.
In ancient times Brazil was a place where Indians lived. At the beginning of the 16th century, it became a Portuguese colony. The Brazilian Empire was established on September 7, 1822; The United States of Brazil was established on November 15, 1889. In March 1964, the Brazilian soldier military coup came to power and carried out dictatorship. In 1967, it was renamed the Federative Republic of Brazil. In March 1985, the military government returned power to the people.
Brazil pursues a foreign policy of independence, non-interference in internal affairs, respect for sovereignty and territorial integrity, peaceful settlement of disputes and friendly coexistence. Vigorously promote the integration process of South America and Latin America. It is a member of the Union of South American Nations. It is also one of the founding members of the Rio Group. On August 15, 1974, Brazil established diplomatic relations with China.
Brazil has rich natural resources and a complete industrial base. Its GDP ranks first in South America and eighth in the world (2017). Iron ore reserves rank 5th in the world. The proven oil reserves are 15.3 billion barrels, ranking 15th in the world and second in South America (second only to Venezuela). The world's second largest producer of genetically modified crops, the first largest producer of soybeans and the fourth largest producer of corn, with the number of cattle in the world second only to India. After the United States, Russia, France, Britain, China and India, it is the seventh country to have nuclear submarines. With a total of 2,498 landing and landing points, Brazil ranks second in the world.
Brazilian currency real, issued by the Central Bank of Brazil, with fractional currency centavo. 1 real = 100 centavos. This 10 centavos coin is made of stainless steel, with a diameter of 18.42mm and a weight of 2.4900g. The main figure on the front shows a large outline with a face value of 10 and five stars on the right, with the auxiliary currency unit centavos and Portuguese national name Brasil on the bottom. The main figure on the back shows a Mao miner searching for diamonds in the valley, with three diamonds on the bottom, and the year of issue 1990 on the bottom. Most of Brazil's diamonds are produced in rivers; such diamonds are known as "alluvial diamonds," which are better in overall quality than diamonds mined from mines. Mao miners are legendary in people's hearts. No matter what their status is, no matter who discovered DIA, they will enjoy their share of the benefits, and their commissions must be paid in full and on time.
